🔌 OptiMATE Lithium 4s 0.8A TM-471: 8-step 12.8V 0.8A Charger and Maintainer for Sealed Batteries Review

I already have a dedicated lifepo4 charger for my higher capacity batteries but I bought this so I wouldn't put too many amps into a pair of lifepo4 Batteries with a capacity of 8 Ah pump . It works in it's own way as by jumping through a couple of hoops I can get the voltage on the batteries up to around 14.2 but I'm not sure about all the other properties they claim for this battery. For example, if I intentionally drain the battery before turning off the BMS to test this unit's ability to…

I also have a more powerful Optimate 5A lithium charger and it works just as well, albeit a bit slower on larger batteries due to the lower amperage - less expensive but certainly no less functional! As with all Tecmate Optimates, you can plug in and go without installing anything, knowing you're getting a completely safe charge. In comparison to other chargers, not all pre- and post-charging tests that are carried out on an ongoing basis are often considered specific to lithium chemistry…

Unbelievable! This charger restored my supposedly dead battery. I accidentally shorted out the Antigravity 8 cell battery and almost drained it to the point where it reads 2.9V. According to Antigravity, you should never let the battery drop below 10.0V or it will be irretrievably lost. If the battery is questionable below 10.0V then it should definitely be dead at 2.9V. Anyway, I was about to buy a new battery when I read some great reviews of this charger on amazon .com and bought one. It…

Bought because my motorcycle collection is getting too big to handle without constantly moving chargers around. Installed but the bikes were in a different location. He wasn't even connected to the network for almost a year. Replaced all batteries in motorcycles to be on same install date. Only place old batteries in the charger for servicing. After a few days everything was fine. For my other bike I had to wait for an extension cable. A week later it arrived and I went to install and charge…

Optimate makes very handy, feature rich smart chargers that I've been proud of in the past. So when I needed an LFP charger I decided to stick with this brand. The LFP battery I'm working with is very small (3 amp hours; current load limit is 6 amps) so I figured the charger on this model would be more than adequate. So I just plug everything in like that, and everything's fine for a few days, then the charger's 'fault' light comes on, telling me the battery isn't charging properly and…