A 12-volt lithium battery charger for LiFePO4 needs to hit 14.2 to 14.6 volts in constant current, then hold that voltage while the current tapers off. Anything else, especially a lead-acid charger’s float stage, will either undercharge your battery or wear it out early. Short version: match the charger to LiFePO4 chemistry specifically, size the … Read more
If your charger’s light is flashing red right now, skip to the troubleshooting section below. Otherwise, here’s the short version: the Black & Decker Firestorm 12V battery charger charges NiCd and NiMH slide-style packs like the FS120B, FSB12, and HPB12. It runs on standard 120V household power, outputs up to 2.3A, and charges most packs … Read more
Battery Tender 3 amp reviews and complaints — the short answer The Battery Tender 3 Amp (model 022-0202-COS, sold as the Power Plus or PowerTender) charges and maintains 6V and 12V batteries between 14Ah and 100Ah. Most owners rate it well for years of storage duty on cars, boats, and larger motorcycles. The complaints that … Read more