{"product_id":"optimate-lithium-4s-0-8a-charger-tm-471-safe-lifepo4-maintenance","title":"OptiMATE Lithium 4s 0.8A Charger TM-471 - Safe LiFePO4 Maintenance","description":"\u003cp\u003eIn this review the OptiMATE Lithium 4s 0.8A (TM-471) is evaluated as a dedicated charger and maintainer for 12.8V Lithium battery packs. The bottom line: it is aimed at owners of LiFePO4, LiFe and LFP batteries who want a safe, low-current maintainer that can revive batteries other chargers cannot. Reviewers will appreciate the chargers focus on long battery life, integrated safety for high-performance chemistry and a selective wake up mode that addresses batteries with a built-in BMS.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLonger battery life:\u003c\/strong\u003e The charger is designed to keep Lithium battery cells in peak condition, helping extend usable battery life when used as a regular maintainer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltimate protection:\u003c\/strong\u003e Built-in charging routine provides protection tailored to high-performance Lithium (LiFePO4\/LiFe\/LFP) battery chemistry to prevent overcharging and stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaves dead batteries:\u003c\/strong\u003e The unit includes recovery capability to revive deeply discharged batteries that many conventional chargers will not recognise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS wake up mode:\u003c\/strong\u003e A safe wake up sequence brings batteries with an integrated Battery Management System out of sleep mode without bypassing the BMS protections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed charger design:\u003c\/strong\u003e Intended as a maintainer for stored or infrequently used equipment, the sealed charger reduces maintenance and risk in varied environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe OptiMATE Lithium 4s 0.8A is best for owners of 12.8V LiFePO4 or similar Lithium packs who need a reliable trickle charger and maintainer that prioritises battery longevity and safety. It suits motorcycles, powersports, small marine craft and backup systems where slow, controlled charging and occasional battery recovery are key.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for users who need fast high-current charging or who require multi-voltage programmable chargers; those customers should look for higher-amp or multi-stage power supplies. Also, if you do not use Lithium chemistry, a charger matched to lead-acid or other battery types would be a better fit.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned to extend battery life through controlled maintenance charging for LiFePO4\/LiFe\/LFP cells.\u003c\/li\u003e\n\u003cli\u003eIncludes a safe BMS wake up mode that can recover batteries with integrated protection circuits.\u003c\/li\u003e\n\u003cli\u003eCustomers report easy plug-and-play use and reliable charge safety with overcharge prevention.\u003c\/li\u003e\n\u003cli\u003eGood quality construction and predictable charging behaviour praised by owners.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLow 0.8A output means charging and recovery are slow compared with higher-amp chargers.\u003c\/li\u003e\n\u003cli\u003eNot intended for non-Lithium battery chemistries, so compatibility is limited to LiFePO4\/LiFe\/LFP and similar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct name\u003c\/td\u003e\n\u003ctd\u003eOptiMATE Lithium 4s 0.8A (TM-471)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e12.8V (4s LiFePO4 nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput current\u003c\/td\u003e\n\u003ctd\u003e0.8A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery chemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4 \/ LiFe \/ LFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003e8-step sealed battery charger and maintainer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial mode\u003c\/td\u003e\n\u003ctd\u003eBMS wake up mode for batteries with integrated protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe OptiMATE Lithium 4s 0.8A is a practical, safety-focused maintainer for 12.8V Lithium battery owners who value long battery life and reliable maintenance. It recovers protected batteries and prevents overcharge, making it good value for riders and small craft owners who need a low-current, dependable charger rather than fast bulk charging.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan it wake a battery with an integrated BMS?\u003c\/strong\u003e\u003cbr\u003eYes. The unit includes a BMS wake up mode that safely brings batteries out of sleep without defeating protection circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this charger suitable for lead-acid batteries?\u003c\/strong\u003e\u003cbr\u003eNo. It is designed specifically for LiFePO4\/LiFe\/LFP chemistry and is not intended for lead-acid or other unrelated battery types.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow fast will it charge a typical 12.8V pack?\u003c\/strong\u003e\u003cbr\u003eCharging is intentionally slow at 0.8A to protect cell life, so expect extended charge times compared with higher-amp chargers.\u003c\/p\u003e","brand":"Optimate","offers":[{"title":"Default Title","offer_id":48156009726171,"sku":"B00Y38X7WI","price":76.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71Jf4IgpHgL._AC_SL1500.jpg?v=1768767009","url":"https:\/\/gearmusthave.com\/products\/optimate-lithium-4s-0-8a-charger-tm-471-safe-lifepo4-maintenance","provider":"GearMustHave","version":"1.0","type":"link"}