{"id":5089,"date":"2026-01-15T10:21:16","date_gmt":"2026-01-15T10:21:16","guid":{"rendered":"https:\/\/www.kmdpower.com\/?p=5089"},"modified":"2026-01-15T10:21:17","modified_gmt":"2026-01-15T10:21:17","slug":"lithium-ion-vs-nimh-what-is-the-difference","status":"publish","type":"post","link":"https:\/\/www.kmdpower.com\/cs\/news\/lithium-ion-vs-nimh-what-is-the-difference\/","title":{"rendered":"Lithium-iontov\u00e9 vs. NiMH: jak\u00fd je mezi nimi rozd\u00edl?"},"content":{"rendered":"<p>Lithium-iontov\u00e9 vs. NiMH: jak\u00fd je mezi nimi rozd\u00edl? Jeden evropsk\u00fd mana\u017eer n\u00e1kupu OEM n\u00e1m jednou poslal e-mailem fotografii, kter\u00e1 m\u011b p\u0159im\u011bla k zamy\u0161len\u00ed: z\u00e1sobn\u00edk s \u010dl\u00e1nky velikosti \"AA\" z poln\u00edho za\u0159\u00edzen\u00ed - n\u011bkter\u00e9 ozna\u010den\u00e9 jako\u00a0<strong>NiMH<\/strong>, n\u011bkter\u00e9\u00a0<strong>Li-ion<\/strong>-sm\u00ed\u0161en\u00e9, jako by byly zam\u011bniteln\u00e9. Zpr\u00e1va o selh\u00e1n\u00ed byla stroh\u00e1:\u00a0<em>n\u00e1hodn\u00e9 resetov\u00e1n\u00ed, otekl\u00e9 \u010dl\u00e1nky a jeden roztaven\u00fd kryt baterie.<\/em>\u00a0V tom je pr\u00e1v\u011b ta past: mohou vypadat podobn\u011b, ale jsou...\u00a0<strong>elektricky a chemicky odli\u0161n\u00e9<\/strong>a \u0161patn\u00e1 v\u00fdm\u011bna m\u016f\u017ee znamenat cokoli od \"nespust\u00ed se\" a\u017e po \"nespust\u00ed se\".\u00a0<strong>po\u0161kozen\u00ed p\u0159ep\u011bt\u00edm<\/strong>\u00a0nebo\u00a0<strong>bezpe\u010dnostn\u00ed incident p\u0159i nab\u00edjen\u00ed<\/strong>.\u00a0<strong>Pravidlo:<\/strong>\u00a0vybrat\u00a0<strong>Li-ion<\/strong>\u00a0pro\u00a0<strong>vysok\u00e1 energie\/v\u00fdkon na hmotnost<\/strong>\u00a0pokud je pro to za\u0159\u00edzen\u00ed + nab\u00edje\u010dka ur\u010deno; vyberte si\u00a0<strong>NiMH<\/strong>\u00a0pro\u00a0<strong>robustn\u00ed, cenov\u011b v\u00fdhodn\u00e9 n\u00e1hrady 1,2 V AA\/AAA<\/strong>.<\/p><figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"813\" height=\"647\" src=\"https:\/\/www.kmdpower.com\/wp-content\/uploads\/12v-100ah-lifepo4-battery-kamada-power1.jpg\" alt=\"\" class=\"wp-image-861\"\/><\/figure><p class=\"has-text-align-center\"><strong><a href=\"https:\/\/www.kmdpower.com\/cs\/deep-cycle-6500-cycles-12v-100ah-lifepo4-battery-product\/\" target=\"_blank\" rel=\"noreferrer noopener\">Kamada Power 12v 100Ah Lifepo4 baterie<\/a><\/strong><\/p><h2 class=\"wp-block-heading\" id=\"-the-quick-comparison-at-a-glance-\"><strong>Rychl\u00e9 srovn\u00e1n\u00ed NiMH a lithium-iontov\u00fdch bateri\u00ed<\/strong><\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Funkce<\/th><th>NiMH<\/th><th>Lithium-iontov\u00e9 (Li-ion)<\/th><\/tr><\/thead><tbody><tr><td><strong>Jmenovit\u00e9 nap\u011bt\u00ed<\/strong><\/td><td><strong>1.2V<\/strong>&nbsp;na bu\u0148ku<\/td><td><strong>3,6 V\/3,7 V<\/strong>&nbsp;na bu\u0148ku (typicky)<\/td><\/tr><tr><td><strong>Hustota energie<\/strong><\/td><td>St\u0159edn\u00ed<\/td><td>Vysok\u00e1<\/td><\/tr><tr><td><strong>Samovyb\u00edjen\u00ed<\/strong><\/td><td>M\u00edrn\u00fd (typy s n\u00edzk\u00fdm samovyb\u00edjen\u00edm jsou mnohem lep\u0161\u00ed)<\/td><td>N\u00edzk\u00e1 (obecn\u011b)<\/td><\/tr><tr><td><strong>Pam\u011b\u0165ov\u00fd efekt<\/strong><\/td><td>Minim\u00e1ln\u00ed (ne jako star\u00e9 NiCd)<\/td><td>\u017d\u00e1dn\u00e9 (ale st\u00e1rne jinak)<\/td><\/tr><tr><td><strong>\u017divotn\u00ed cyklus<\/strong><\/td><td>~500-2000 cykl\u016f (z\u00e1vis\u00ed do zna\u010dn\u00e9 m\u00edry na hloubce vybit\u00ed a \u0159\u00edzen\u00ed nab\u00edjen\u00ed)<\/td><td>~300-1000+ cykl\u016f (zna\u010dn\u011b se li\u0161\u00ed podle chemick\u00e9ho slo\u017een\u00ed, konstruk\u010dn\u00edch limit\u016f a tepeln\u00e9ho profilu)<\/td><\/tr><tr><td><strong>N\u00e1klady<\/strong><\/td><td>Ni\u017e\u0161\u00ed z\u00e1loha<\/td><td>Vy\u0161\u0161\u00ed po\u010d\u00e1te\u010dn\u00ed n\u00e1klady (plus slo\u017eitost ochrany\/nab\u00edjen\u00ed)<\/td><\/tr><\/tbody><\/table><\/figure><p>Pokud nakupujete pro n\u011bjak\u00fd program, u\u017e jen tato nap\u011b\u0165ov\u00e1 \u0159ada by v\u00e1s m\u011bla zpomalit.&nbsp;<strong>1,2 V vs. 3,7 V nen\u00ed zaokrouhlovac\u00ed chyba.<\/strong>&nbsp;Je to \u00fapln\u011b jin\u00fd syst\u00e9m.<\/p><h2 class=\"wp-block-heading\" id=\"-key-differences-explained-\"><strong>Vysv\u011btlen\u00ed hlavn\u00edch rozd\u00edl\u016f<\/strong><\/h2><h3 class=\"wp-block-heading\" id=\"-1-voltage-energy-density-the-big-one-\"><strong>1. Nap\u011bt\u00ed a hustota energie (Velk\u00e1)<\/strong><\/h3><p>Za\u010dn\u011bme \u010d\u00e1st\u00ed, kter\u00e1 ti\u0161e rozb\u00edj\u00ed produkty.<\/p><p>Standardn\u00ed&nbsp;<strong>NiMH AA<\/strong>&nbsp;bu\u0148ka je&nbsp;<strong>Nomin\u00e1ln\u00ed nap\u011bt\u00ed 1,2 V<\/strong>&nbsp;(m\u016f\u017ee b\u00fdt ~1,4 V \u010derstv\u011b po nabit\u00ed, pak se ust\u00e1l\u00ed). Standardn\u00ed&nbsp;<strong>Li-ion<\/strong>&nbsp;bu\u0148ka je&nbsp;<strong>3,6V\/3,7V nomin\u00e1ln\u00ed nap\u011bt\u00ed<\/strong>&nbsp;(4,2 V pln\u011b nabit\u00e9 pro b\u011b\u017en\u00e9 Li-ion).<\/p><p>Co se tedy stane, kdy\u017e n\u011bkdo vhod\u00ed norm\u00e1ln\u00ed 3,7V Li-ion \u010dl\u00e1nek do za\u0159\u00edzen\u00ed ur\u010den\u00e9ho pro 1,2V NiMH?<\/p><ul class=\"wp-block-list\"><li>Nejlep\u0161\u00ed p\u0159\u00edpad: za\u0159\u00edzen\u00ed se odm\u00edtne spustit (pokud m\u00e1 ochranu).<\/li>\n\n<li>B\u011b\u017en\u00fd p\u0159\u00edpad: it\u00a0<em>za\u010d\u00edn\u00e1<\/em>, pak se p\u0159eh\u0159\u00edvaj\u00ed regul\u00e1tory nebo se sma\u017e\u00ed p\u0159edn\u00ed elektronika.<\/li>\n\n<li>V nejhor\u0161\u00edm p\u0159\u00edpad\u011b se st\u00e1v\u00e1 nebezpe\u010d\u00edm nab\u00edjen\u00ed, proto\u017ee \"nab\u00edje\u010dka\" za\u0159\u00edzen\u00ed nen\u00ed nab\u00edje\u010dkou Li-ion.<\/li><\/ul><p><strong>Bezpe\u010dnostn\u00ed upozorn\u011bn\u00ed EEAT (d\u016fle\u017eit\u00e9):<\/strong>&nbsp;Jedin\u00fd p\u0159\u00edpad, kdy je \"Li-ion AA\" bezpe\u010dnou n\u00e1hradou za sloty AA, je, kdy\u017e se jedn\u00e1 o.&nbsp;<strong>1,5V regulovan\u00fd Li-ion AA<\/strong>-Li-iontov\u00fd \u010dl\u00e1nek uvnit\u0159, plus&nbsp;<strong>Regul\u00e1tor DC-DC<\/strong>&nbsp;kter\u00fd dod\u00e1v\u00e1 ~1,5 V. Ty jsou speci\u00e1ln\u011b navr\u017eeny tak, aby napodobovaly chov\u00e1n\u00ed alkalick\u00fdch bateri\u00ed v za\u0159\u00edzen\u00edch, kter\u00e1 o\u010dek\u00e1vaj\u00ed nap\u011bt\u00ed 1,5 V. Hol\u00fd&nbsp;<strong>14500<\/strong>&nbsp;\u010dl\u00e1nek (Li-ion ve velikosti AA) je&nbsp;<strong>ne<\/strong>&nbsp;je st\u00e1le stejn\u00fd - st\u00e1le je to ~3,7 V nomin\u00e1ln\u011b.<\/p><p>Nyn\u00ed k hustot\u011b energie:&nbsp;<strong>Li-ion v\u00edt\u011bz\u00ed<\/strong>. Proto jsou telefony, notebooky, drony, ru\u010dn\u00ed skenery a v\u011bt\u0161ina modern\u00edch bateri\u00ed Li-ion (\u010dasto NMC\/NCA nebo LFP v z\u00e1vislosti na aplikaci). Na kilogram a litr z\u00edsk\u00e1te v\u00edce watthodin. Pro kupuj\u00edc\u00edho to znamen\u00e1:<\/p><ul class=\"wp-block-list\"><li>leh\u010d\u00ed za\u0159\u00edzen\u00ed,<\/li>\n\n<li>del\u0161\u00ed doba provozu p\u0159i stejn\u00e9 hmotnosti,<\/li>\n\n<li>nebo men\u0161\u00ed balen\u00ed p\u0159i stejn\u00e9 dob\u011b provozu.<\/li><\/ul><p>NiMH je p\u0159i stejn\u00e9 energii objemn\u011bj\u0161\u00ed. Nen\u00ed \"\u0161patn\u00fd\". Jen se nesna\u017e\u00ed dos\u00e1hnout stejn\u00e9ho v\u00fdkonu.<\/p><h3 class=\"wp-block-heading\" id=\"-2-self-discharge-shelf-life-\"><strong>2. Samovyb\u00edjen\u00ed a skladovatelnost<\/strong><\/h3><p>Zde je rychl\u00fd ment\u00e1ln\u00ed test, kter\u00fd pou\u017e\u00edv\u00e1m s klienty:&nbsp;<strong>test z\u00e1suvek<\/strong>.<\/p><p>Nainstalujete \u010derstv\u00e9 \u010dl\u00e1nky a pak za\u0159\u00edzen\u00ed le\u017e\u00ed 6-12 m\u011bs\u00edc\u016f ve skladu, servisn\u00edm voze nebo v z\u00e1suvce s n\u00e1hradn\u00edmi d\u00edly. K \u010demu se vr\u00e1t\u00edte?<\/p><ul class=\"wp-block-list\"><li><strong>Standardn\u00ed NiMH<\/strong>\u00a0historicky doch\u00e1zelo k v\u00fdrazn\u00e9mu samovyb\u00edjen\u00ed. M\u016f\u017ee se st\u00e1t, \u017ee ji vyt\u00e1hnete a zjist\u00edte, \u017ee je nep\u0159\u00edjemn\u011b n\u00edzk\u00e1 nebo vybit\u00e1.<\/li>\n\n<li><strong>NiMH s n\u00edzk\u00fdm samovyb\u00edjen\u00edm (LSD)<\/strong>-p\u0159edstavte si kategorii \"t\u0159\u00edda Eneloop\", kter\u00e1 tuto hru zm\u011bnila. LSD NiMH dok\u00e1\u017ee udr\u017eet n\u00e1boj mnohem l\u00e9pe ne\u017e star\u0161\u00ed konstrukce NiMH, co\u017e je praktick\u00e9 pro d\u00e1lkov\u00e1 ovl\u00e1d\u00e1n\u00ed, senzory a pohotovostn\u00ed za\u0159\u00edzen\u00ed.<\/li>\n\n<li><strong>Li-ion<\/strong>\u00a0m\u00e1 obecn\u011b\u00a0<strong>n\u00edzk\u00e9 samovyb\u00edjen\u00ed<\/strong>, ale m\u00e1 jin\u00e9ho nep\u0159\u00edtele:\u00a0<strong>st\u00e1rnut\u00ed kalend\u00e1\u0159e<\/strong>. I kdy\u017e ji moc necyklujete, vysok\u00fd stav nabit\u00ed + teplo m\u016f\u017ee \u010dasem sn\u00ed\u017eit kapacitu.<\/li><\/ul><p>Co je tedy lep\u0161\u00ed pro z\u0159\u00eddka pou\u017e\u00edvan\u00e1 za\u0159\u00edzen\u00ed? \u010casto&nbsp;<strong>Li-ion<\/strong>&nbsp;vypad\u00e1 l\u00e9pe na \"je\u0161t\u011b m\u00e1 n\u00e1boj pozd\u011bji,\" ale&nbsp;<strong>LSD NiMH<\/strong>&nbsp;mohou b\u00fdt p\u0159ekvapiv\u011b konkurenceschopn\u00e9 - a n\u011bkdy i \u0161etrn\u011bj\u0161\u00ed p\u0159i nekontrolovan\u00e9m skladov\u00e1n\u00ed.<\/p><p>Tip pro zadavatele: pokud n\u00e1hradn\u00ed d\u00edly dlouho le\u017e\u00ed, zadejte.&nbsp;<strong>LSD NiMH<\/strong>&nbsp;v\u00fdslovn\u011b. Samotn\u00fd n\u00e1zev \"NiMH\" nen\u00ed \u00faplnou specifikac\u00ed.<\/p><h3 class=\"wp-block-heading\" id=\"-3-charging-safety-critical-\"><strong>3. Nab\u00edjen\u00ed a bezpe\u010dnost (kritick\u00e9)<\/strong><\/h3><p>V tomto p\u0159\u00edpad\u011b doch\u00e1z\u00ed k doslovn\u00e9mu po\u0161kozen\u00ed lid\u00ed, pokud je syst\u00e9m popleten\u00fd.<\/p><p><strong>O nekompatibilit\u011b nab\u00edje\u010dky nelze diskutovat:<\/strong><\/p><ul class=\"wp-block-list\"><li><strong>Nab\u00edje\u010dky NiMH<\/strong>\u00a0\u010dasto pou\u017e\u00edvaj\u00ed\u00a0<strong>Detekce \u0394V (delta-V)<\/strong>\u00a0a teplotn\u00ed chov\u00e1n\u00ed pro ukon\u010den\u00ed nab\u00edjen\u00ed.<\/li>\n\n<li><strong>Nab\u00edje\u010dky Li-ion<\/strong>\u00a0pou\u017e\u00edt\u00a0<strong>CC\/CV (konstantn\u00ed proud \/ konstantn\u00ed nap\u011bt\u00ed)<\/strong>\u00a0s p\u0159esn\u00fdmi mezn\u00edmi hodnotami nap\u011bt\u00ed (b\u011b\u017en\u011b 4,2 V na \u010dl\u00e1nek u mnoha chemick\u00fdch l\u00e1tek) a vy\u017eaduj\u00ed ochrann\u00e9 kontroly.<\/li><\/ul><p><strong>Upozorn\u011bn\u00ed (kter\u00e9 stoj\u00ed za to zopakovat):<\/strong>&nbsp;Nikdy neukl\u00e1dejte&nbsp;<strong>Li-ion<\/strong>&nbsp;bun\u011bk do&nbsp;<strong>Nab\u00edje\u010dka NiMH<\/strong>. A nep\u0159edpokl\u00e1dejte, \u017ee \"chytr\u00e1 nab\u00edje\u010dka\" znamen\u00e1, \u017ee dok\u00e1\u017ee bezpe\u010dn\u011b detekovat cokoli. \u0160patn\u00fd algoritmus + \u0161patn\u00e9 ukon\u010den\u00ed = p\u0159eh\u0159\u00e1t\u00fd \u010dl\u00e1nek, odvzdu\u0161n\u011bn\u00ed nebo n\u011bco hor\u0161\u00edho.<\/p><p>Bezpe\u010dnostn\u00ed profil:<\/p><ul class=\"wp-block-list\"><li><strong>NiMH<\/strong>\u00a0je obecn\u011b robustn\u011bj\u0161\u00ed a m\u00e9n\u011b n\u00e1chyln\u00e1 k dramatick\u00fdm poruch\u00e1m. M\u016f\u017ee se p\u0159eh\u0159\u00e1t, pokud je zneu\u017e\u00edv\u00e1n, ale je obvykle t\u011b\u017e\u0161\u00ed vyvolat katastrofickou ud\u00e1lost.<\/li>\n\n<li><strong>Li-ion<\/strong>\u00a0m\u00e1 vy\u0161\u0161\u00ed hustotu energie a m\u016f\u017ee dod\u00e1vat velmi vysok\u00fd proud, co\u017e je skv\u011bl\u00e9 - dokud se s n\u00edm \u0161patn\u011b nenakl\u00e1d\u00e1. Obvykle vy\u017eaduje\u00a0<strong>ochrann\u00fd obvod \/ BMS (Battery Management System)<\/strong>\u00a0na \u00farovni balen\u00ed (nebo ochrann\u00e9 desky plo\u0161n\u00fdch spoj\u016f na \u00farovni \u010dl\u00e1nk\u016f ve spot\u0159ebitelsk\u00fdch form\u00e1tech), aby se zabr\u00e1nilo p\u0159eb\u00edjen\u00ed, nadm\u011brn\u00e9mu vyb\u00edjen\u00ed, nadm\u011brn\u00e9mu proudu a tepeln\u00e9mu vy\u010derp\u00e1n\u00ed.<\/li><\/ul><p>Z na\u0161ich zku\u0161enost\u00ed s pr\u016fmyslov\u00fdmi z\u00e1kazn\u00edky vypl\u00fdv\u00e1, \u017ee v\u011bt\u0161ina \"li-ionov\u00fdch incident\u016f\" nen\u00ed zp\u016fsobena \"nebezpe\u010dnost\u00ed\" chemie. Jde o&nbsp;<strong>n\u00e1vrh syst\u00e9mu<\/strong>: \u0159\u00edzen\u00ed nab\u00edjen\u00ed, mechanick\u00e1 ochrana, tepeln\u00fd management a kvalita \u010dl\u00e1nk\u016f.<\/p><h3 class=\"wp-block-heading\" id=\"-4-performance-in-cold-weather-\"><strong>4. V\u00fdkon v chladn\u00e9m po\u010das\u00ed<\/strong><\/h3><p>V\u00fdkon v chladn\u00e9m po\u010das\u00ed je to, v \u010dem si z\u00e1kazn\u00edci v re\u00e1ln\u00e9m sv\u011bt\u011b rychle v\u0161imnou rozd\u00edlu.<\/p><p>V mrazu:<\/p><ul class=\"wp-block-list\"><li><strong>NiMH<\/strong>\u00a0m\u016f\u017ee m\u00edt probl\u00e9my s dod\u00e1vkou energie a efektivn\u00ed kapacitou. Vnit\u0159n\u00ed odpor se zvy\u0161uje a p\u0159i zat\u00ed\u017een\u00ed je patrn\u00e9 prohnut\u00ed.<\/li>\n\n<li><strong>Kvalitn\u00ed Li-ion<\/strong>\u00a0m\u016f\u017ee st\u00e1le dod\u00e1vat siln\u00fd v\u00fdkon, ale nen\u00ed to kouzlo: chlad zvy\u0161uje odolnost i u Li-ion. Tak\u00e9,\u00a0<strong>nab\u00edjen\u00ed Li-ion za studena<\/strong>\u00a0je zn\u00e1m\u00fdm rizikem - mnoho syst\u00e9m\u016f omezuje nab\u00edjec\u00ed proud p\u0159i n\u00edzk\u00fdch teplot\u00e1ch, aby se zabr\u00e1nilo pokoven\u00ed lithia.<\/li><\/ul><p>Pokud zad\u00e1v\u00e1te specifikace pro outdoorov\u00e9 vybaven\u00ed (inspek\u010dn\u00ed n\u00e1stroje, ru\u010dn\u00ed skenery, vzd\u00e1len\u00e9 senzory), neptejte se jen \"funguje to p\u0159i -10 \u00b0C?\". Ptejte se:<\/p><ul class=\"wp-block-list\"><li>co je to\u00a0<strong>vyb\u00edjec\u00ed proud<\/strong>\u00a0p\u0159i teplot\u011b,<\/li>\n\n<li>co je to\u00a0<strong>limit nabit\u00ed<\/strong>\u00a0p\u0159i teplot\u011b,<\/li>\n\n<li>a zda je bal\u00ed\u010dek\/spr\u00e1vce vynucuje.<\/li><\/ul><h2 class=\"wp-block-heading\" id=\"-can-i-replace-nimh-with-lithium-ion-\"><strong>Mohu nahradit NiMH lithium-iontovou bateri\u00ed?<\/strong><\/h2><h3 class=\"wp-block-heading\" id=\"-scenario-a-consumer-electronics-aa-aaa-\"><strong>Sc\u00e9n\u00e1\u0159 A: Spot\u0159ebn\u00ed elektronika (AA\/AAA)<\/strong><\/h3><p><strong>Odpov\u011b\u010f: Ano, ale pouze se speci\u00e1ln\u00edmi 1,5V regulovan\u00fdmi Li-ion bateriemi AA.<\/strong><\/p><p>Pokud vym\u011b\u0148ujete AA\/AAA v d\u00e1lkov\u00fdch ovlada\u010d\u00edch, ovlada\u010d\u00edch, hra\u010dk\u00e1ch nebo z\u00e1kladn\u00ed elektronice, bezpe\u010dnou cestou je:<\/p><ul class=\"wp-block-list\"><li>NiMH (zejm\u00e9na LSD NiMH) nebo<\/li>\n\n<li><strong>1,5V regulovan\u00fd Li-ion AA<\/strong>\u00a0je navr\u017een jako n\u00e1hradn\u00ed.<\/li><\/ul><p><strong>Varov\u00e1n\u00ed:<\/strong>&nbsp;Do&nbsp;<strong>ne<\/strong>&nbsp;pou\u017e\u00edt hol\u00fd&nbsp;<strong>14500 (3,7 V) Li-ion<\/strong>&nbsp;ve standardn\u00edm za\u0159\u00edzen\u00ed AA. Stejn\u00e1 velikost neznamen\u00e1 stejn\u00fd elektrick\u00fd syst\u00e9m.<\/p><p>Pro zad\u00e1v\u00e1n\u00ed zak\u00e1zek: pokud va\u0161e t\u00fdmy v ter\u00e9nu skladuj\u00ed \u010dl\u00e1nky velikosti AA v z\u00e1sobn\u00edc\u00edch, pot\u0159ebujete discipl\u00ednu v oblasti balen\u00ed a ozna\u010dov\u00e1n\u00ed. Sm\u00ed\u0161en\u00e9 boxy jsou p\u0159\u00ed\u010dinou poruch.<\/p><h3 class=\"wp-block-heading\" id=\"-scenario-b-power-tools-rc-cars-\"><strong>Sc\u00e9n\u00e1\u0159 B: Elektrick\u00e9 n\u00e1\u0159ad\u00ed a RC auta<\/strong><\/h3><p><strong>Odpov\u011b\u010f: Ano, jedn\u00e1 se o b\u011b\u017en\u00fd upgrade - a \u010dasto jde o velk\u00fd v\u00fdkonnostn\u00ed skok.<\/strong><\/p><p>Zde Li-ion baterie zaz\u00e1\u0159\u00ed:<\/p><ul class=\"wp-block-list\"><li>vy\u0161\u0161\u00ed v\u00fdkon,<\/li>\n\n<li>men\u0161\u00ed pokles nap\u011bt\u00ed p\u0159i vyb\u00edjen\u00ed akumul\u00e1toru,<\/li>\n\n<li>lep\u0161\u00ed pom\u011br v\u00fdkonu a hmotnosti.<\/li><\/ul><p>To v\u0161ak s sebou nese ur\u010dit\u00e9 po\u017eadavky:<\/p><ul class=\"wp-block-list\"><li>je nutn\u00e9 p\u0159epnout na\u00a0<strong>Vhodn\u00e1 nab\u00edje\u010dka Li-ion<\/strong>,<\/li>\n\n<li>zajistit, aby\u00a0<strong>motor\/regul\u00e1tor<\/strong>\u00a0zvl\u00e1dne nap\u011bt\u00ed a \u0161pi\u010dkov\u00fd proud,<\/li>\n\n<li>a v ide\u00e1ln\u00edm p\u0159\u00edpad\u011b pou\u017e\u00edvejte balen\u00ed s vhodnou ochranou a tepelnou konstrukc\u00ed.<\/li><\/ul><p>Jednoduch\u00e9 p\u0159irovn\u00e1n\u00ed: p\u0159echod na Li-Ion je jako v\u00fdm\u011bna motoru pro doj\u00ed\u017ed\u011bn\u00ed za v\u00fdkonn\u00fd motor. Skv\u011bl\u00e9 v\u00fdsledky - pokud je na to pohonn\u00e9 \u00fastroj\u00ed stav\u011bn\u00e9.<\/p><h3 class=\"wp-block-heading\" id=\"-scenario-c-solar-garden-lights-\"><strong>Sc\u00e9n\u00e1\u0159 C: Sol\u00e1rn\u00ed zahradn\u00ed osv\u011btlen\u00ed<\/strong><\/h3><p><strong>Odpov\u011b\u010f: Obvykle ne.<\/strong><\/p><p>V\u011bt\u0161ina sol\u00e1rn\u00edch zahradn\u00edch sv\u00edtidel je navr\u017eena kolem&nbsp;<strong>1,2 V NiMH<\/strong>&nbsp;chov\u00e1n\u00ed p\u0159i nab\u00edjen\u00ed a extr\u00e9mn\u011b jednoduch\u00e9 obvody. Drop-in Li-ion obvykle neodpov\u00edd\u00e1 zp\u016fsobu nab\u00edjen\u00ed ani o\u010dek\u00e1van\u00e9mu nap\u011bt\u00ed.<\/p><p>Pokud ovlada\u010d a nab\u00edjec\u00ed obvody nep\u0159epracujete,&nbsp;<strong>dr\u017eet se NiMH<\/strong>. Je levn\u00fd, kompatibiln\u00ed a bezpe\u010dn\u00fd pro tuto architekturu.<\/p><h2 class=\"wp-block-heading\" id=\"-which-one-should-you-buy-\"><strong>Kter\u00fd byste si m\u011bli koupit?<\/strong><\/h2><h3 class=\"wp-block-heading\" id=\"-choose-nimh-battery-\"><strong>V\u00fdb\u011br baterie NiMH<\/strong><\/h3><p>NiMH si vyberte, kdy\u017e:<\/p><ul class=\"wp-block-list\"><li>vym\u011b\u0148ujete baterie v b\u011b\u017en\u00fdch dom\u00e1c\u00edch nebo star\u0161\u00edch za\u0159\u00edzen\u00edch (d\u00e1lkov\u00e9 ovlada\u010de, hodiny, star\u0161\u00ed hra\u010dky, jednoduch\u00e9 pr\u016fmyslov\u00e9 p\u0159\u00edslu\u0161enstv\u00ed),<\/li>\n\n<li>bezpe\u010dnost a robustnost jsou d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e maxim\u00e1ln\u00ed hustota energie,<\/li>\n\n<li>rozpo\u010det je napjat\u00fd a chcete p\u0159edv\u00eddateln\u00e9 zdroje,<\/li>\n\n<li>v ter\u00e9nu ji\u017e m\u00e1te infrastrukturu pro nab\u00edjen\u00ed NiMH.<\/li><\/ul><p>Pozn\u00e1mka pro kupuj\u00edc\u00edho: uve\u010fte&nbsp;<strong>LSD NiMH<\/strong>&nbsp;kdy\u017e z\u00e1le\u017e\u00ed na trvanlivosti. Sni\u017euje po\u010det servisn\u00edch z\u00e1sah\u016f a reklamac\u00ed typu \"pro\u010d u\u017e je to mrtv\u00e9?\".<\/p><h3 class=\"wp-block-heading\" id=\"-choose-lithium-ion-battery-\"><strong>V\u00fdb\u011br lithium-iontov\u00e9 baterie<\/strong><\/h3><p>Li-ion si vyberte, kdy\u017e:<\/p><ul class=\"wp-block-list\"><li>z\u00e1le\u017e\u00ed na hmotnosti (drony, ru\u010dn\u00ed inspek\u010dn\u00ed za\u0159\u00edzen\u00ed, p\u0159enosn\u00e9 p\u0159\u00edstroje),<\/li>\n\n<li>pot\u0159ebujete vysok\u00fd v\u00fdkon (sv\u00edtilny s vysok\u00fdm sv\u011bteln\u00fdm tokem, skenery, n\u00e1\u0159ad\u00ed),<\/li>\n\n<li>chcete prodlou\u017eit dobu provozu mezi jednotliv\u00fdmi nabit\u00edmi,<\/li>\n\n<li>kupujete nebo navrhujete bal\u00ed\u010dek se spr\u00e1vn\u00fdm\u00a0<strong>BMS<\/strong>, nab\u00edje\u010dka a mechanick\u00e1 ochrana.<\/li><\/ul><p>Srovn\u00e1n\u00ed zam\u011b\u0159en\u00e9 na kupuj\u00edc\u00edho: Pokud je va\u0161\u00edm kl\u00ed\u010dov\u00fdm ukazatelem v\u00fdkonnosti&nbsp;<strong>doba provozu na kilogram<\/strong>&nbsp;nebo&nbsp;<strong>v\u00fdkon na objem<\/strong>, Li-ion je jasn\u00fdm v\u00edt\u011bzem. Pokud je va\u0161\u00edm kl\u00ed\u010dov\u00fdm ukazatelem v\u00fdkonnosti&nbsp;<strong>kompatibilita a v\u00fdm\u011bna s n\u00edzk\u00fdm rizikem<\/strong>, NiMH obvykle v\u00edt\u011bz\u00ed.<\/p><h2 class=\"wp-block-heading\" id=\"-common-myths-debunked-\"><strong>Vyvr\u00e1cen\u00ed nej\u010dast\u011bj\u0161\u00edch m\u00fdt\u016f<\/strong><\/h2><p><strong>M\u00fdtus 1: \"P\u0159ed nab\u00edjen\u00edm je nutn\u00e9 baterie zcela vyb\u00edt.\"<\/strong>&nbsp;To se t\u00fdkalo sp\u00ed\u0161e star\u00fdch&nbsp;<strong>NiCd<\/strong>. U modern\u00edch NiMH a Li-ion nen\u00ed hlubok\u00e9 vyb\u00edjen\u00ed \"nutnost\u00ed\" a m\u016f\u017ee dokonce zkr\u00e1tit \u017eivotnost (zejm\u00e9na u Li-ion).<\/p><p><strong>M\u00fdtus 2: \"Li-ion vydr\u017e\u00ed v\u011b\u010dn\u011b.\"<\/strong>&nbsp;Li-ion st\u00e1rne s \u010dasem, teplotou a vysok\u00fdm stavem nabit\u00ed. I p\u0159i n\u00edzk\u00e9m po\u010dtu cykl\u016f je st\u00e1rnut\u00ed kalend\u00e1\u0159e re\u00e1ln\u00e9. Pokud za\u0159\u00edzen\u00ed stoj\u00ed hork\u00e9 a pln\u011b nabit\u00e9, ztr\u00e1ta kapacity se projev\u00ed d\u0159\u00edve, ne\u017e byste si p\u0159\u00e1li.<\/p><h2 class=\"wp-block-heading\" id=\"-conclusion-\"><strong>Z\u00e1v\u011br<\/strong><\/h2><p>\u017d\u00e1dn\u00e1 \"nejlep\u0161\u00ed baterie\" - vyb\u00edrejte podle toho.\u00a0<strong>nap\u011bt\u00ed za\u0159\u00edzen\u00ed<\/strong>,\u00a0<strong>algoritmus nab\u00edje\u010dky<\/strong>a\u00a0<strong>zat\u00ed\u017een\u00ed<\/strong>: pou\u017eit\u00ed\u00a0<strong>LSD NiMH<\/strong>\u00a0pro\u00a0<strong>1,2V\/NiMH-nab\u00edjen\u00ed<\/strong>\u00a0za\u0159\u00edzen\u00ed; pou\u017eit\u00ed\u00a0<strong>Li-ion<\/strong>\u00a0pouze v p\u0159\u00edpad\u011b, \u017ee je pro to syst\u00e9m navr\u017een (spr\u00e1vn\u00e1 nab\u00edje\u010dka + ochrana); a pro \"vylep\u0161en\u00ed\" tu\u017ekov\u00fdch bateri\u00ed AA pou\u017e\u00edvejte\u00a0<strong>1,5V regulovan\u00fd Li-ion AA<\/strong>, ne\u00a0<strong>3.7V<\/strong>\u00a0bu\u0148ky. <strong><a href=\"https:\/\/www.kmdpower.com\/cs\/contact-us\/\" target=\"_blank\" rel=\"noreferrer noopener\">Kontaktujte n\u00e1s<\/a><\/strong>, Po\u0161lete nap\u011bt\u00ed za\u0159\u00edzen\u00ed, c\u00edlovou dobu provozu a zp\u016fsob nab\u00edjen\u00ed (nebo fotografii \u0161t\u00edtku) a j\u00e1 v\u00e1m rychle \u0159eknu, co je bezpe\u010dn\u00e9 a co ne.<\/p><h2 class=\"wp-block-heading\" id=\"-faq-\"><strong>\u010cASTO KLADEN\u00c9 DOTAZY<\/strong><\/h2><h3 class=\"wp-block-heading\" id=\"-can-i-use-a-nimh-charger-for-lithium-ion-batteries-\"><strong>Mohu pou\u017e\u00edt nab\u00edje\u010dku NiMH pro lithium-iontov\u00e9 baterie?<\/strong><\/h3><p>Ne. NiMH a Li-ion vy\u017eaduj\u00ed odli\u0161n\u00e9 nab\u00edjec\u00ed algoritmy. Pou\u017eit\u00ed nab\u00edje\u010dky NiMH na Li-ion m\u016f\u017ee v\u00e9st k p\u0159eb\u00edjen\u00ed nebo nespr\u00e1vn\u00e9mu ukon\u010den\u00ed nab\u00edjen\u00ed a k bezpe\u010dnostn\u00edmu riziku.<\/p><h3 class=\"wp-block-heading\" id=\"-why-are-lithium-batteries-3-7v-and-aa-batteries-1-5v-\"><strong>Pro\u010d jsou lithiov\u00e9 baterie 3,7 V a baterie AA 1,5 V?<\/strong><\/h3><p>Jsou to r\u016fzn\u00e9 chemick\u00e9 l\u00e1tky s r\u016fzn\u00fdmi elektrochemick\u00fdmi potenci\u00e1ly. Alkalick\u00e9 baterie AA maj\u00ed ~1,5 V, NiMH ~1,2 V a b\u011b\u017en\u00e9 Li-ion ~3,6\/3,7 V nomin\u00e1ln\u011b. Stejn\u00fd tvar neznamen\u00e1 stejn\u00e9 nap\u011bt\u00ed.<\/p><h3 class=\"wp-block-heading\" id=\"-do-nimh-batteries-still-have-memory-effect-\"><strong>Maj\u00ed baterie NiMH st\u00e1le pam\u011b\u0165ov\u00fd efekt?<\/strong><\/h3><p>Ne v klasick\u00e9m smyslu NiCd. NiMH m\u016f\u017ee vykazovat probl\u00e9my s v\u00fdkonem, pokud je za ur\u010dit\u00fdch podm\u00ednek opakovan\u011b m\u011blce cyklov\u00e1n, ale \"pam\u011b\u0165ov\u00fd efekt\" je u modern\u00edch NiMH obvykle p\u0159ece\u0148ov\u00e1n.<\/p><h3 class=\"wp-block-heading\" id=\"-which-battery-lasts-longer-nimh-or-lithium-ion-\"><strong>Kter\u00e1 baterie vydr\u017e\u00ed d\u00e9le, NiMH nebo lithium-iontov\u00e1?<\/strong><\/h3><p>Z\u00e1le\u017e\u00ed na tom, jak definujete pojem \"del\u0161\u00ed\". NiMH m\u016f\u017ee m\u00edt vysokou \u017eivotnost v mnoha p\u0159\u00edpadech st\u0159edn\u011b n\u00e1ro\u010dn\u00e9ho pou\u017eit\u00ed. Li-ion m\u016f\u017ee tak\u00e9 vydr\u017eet dlouho, ale je citliv\u00fd na teplo a vysok\u00fd stav nabit\u00ed (kalend\u00e1\u0159n\u00ed st\u00e1rnut\u00ed). Chcete-li z\u00edskat skute\u010dnou odpov\u011b\u010f, porovnejte pracovn\u00ed cyklus, teplotu a \u0159\u00edzen\u00ed nab\u00edjen\u00ed.<\/p><h3 class=\"wp-block-heading\" id=\"-what-if-i-accidentally-used-a-3-7v-li-ion-in-a-device-meant-for-nimh-\"><strong>Co kdy\u017e jsem omylem pou\u017eil 3,7V Li-ion v za\u0159\u00edzen\u00ed ur\u010den\u00e9m pro NiMH?<\/strong><\/h3><p>P\u0159esta\u0148te jej pou\u017e\u00edvat a zkontrolujte, zda se za\u0159\u00edzen\u00ed nep\u0159eh\u0159\u00edv\u00e1, nepo\u0161kozuje nebo se nechov\u00e1 neobvykle. Pokud bylo nabito nebo b\u011b\u017eelo hork\u00e9, p\u0159istupujte k tomu v\u00e1\u017en\u011b - zkontrolujte za\u0159\u00edzen\u00ed a neprov\u00e1d\u011bjte dal\u0161\u00ed cyklov\u00e1n\u00ed tohoto nastaven\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>Lithium-iontov\u00e9 vs. NiMH: jak\u00fd je mezi nimi rozd\u00edl? Jeden evropsk\u00fd mana\u017eer n\u00e1kupu OEM n\u00e1m kdysi poslal e-mailem fotografii, ze kter\u00e9 jsem se zhrozil: z\u00e1sobn\u00edk \u010dl\u00e1nk\u016f velikosti \"AA\" z poln\u00edho za\u0159\u00edzen\u00ed - n\u011bkter\u00e9 ozna\u010den\u00e9 jako NiMH, n\u011bkter\u00e9 jako Li-ion - sm\u00edchan\u00e9, jako by byly zam\u011bniteln\u00e9. Zpr\u00e1va o poru\u0161e byla stroh\u00e1: n\u00e1hodn\u00e9 resetov\u00e1n\u00ed, zpuch\u0159el\u00e9 \u010dl\u00e1nky a jedna roztaven\u00e1 dv\u00ed\u0159ka baterie. V tom je ta past: mohou vypadat podobn\u011b, ale...<\/p>","protected":false},"author":1,"featured_media":2945,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[19,26],"tags":[],"class_list":["post-5089","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news_catalog","category-product-news"],"_links":{"self":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/5089","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/comments?post=5089"}],"version-history":[{"count":1,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/5089\/revisions"}],"predecessor-version":[{"id":5090,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/5089\/revisions\/5090"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/media\/2945"}],"wp:attachment":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/media?parent=5089"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/categories?post=5089"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/tags?post=5089"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}