3S 4S 5A Active Equalizer Whole Group Balancer Lifepo4 Lipo Lto Lithium Active Battery Energy Transfer Equalization Capacitor

I mean it's simple electrical theory - this balancer should work well. I just didn't think it would work THIS well....especially for the price.I have 16 * 300Ah 3.2v cells that were pretty out of balance, and this balancer got them balanced within a few days! The battery bank is on a Daly BMS which is *supposed* to have balancing, but clearly was not effective. I put this balancer on top of it, and all cells are now almost perfectly balanced.

I really like this active equalizer board. Keeps the cells within 1mv of each other. Using it with a 100 AH battery. This does not have a current limiter or over voltage control as a BMS does, But in my case, works better. All I needed was a balance unit and this one is just what I was looking for.

Very good balancer, low consumption and works perfectly

Bought some 200AH LIFEPO4 drop in batteries (non-smart) and had issues reaching above 13.8v during charge, with more than half of them... I had some suspicions one cell or more were reaching 3.65v before the rest. They still pulled capacity so support wasn't much help.After cracking one open, I confirmed the imbalance. This balancer worked perfectly, and was able to sort out the imbalance in a few hours of on/off tinkering. Just make sure you wire it up right. I'm cautious so I monitor that no cell goes over 3.65v (LIFEPO4) and let it get to work.Now I can charge to the proper 14.2-14.6v on these batteries. Many cheap drop in batteries have a BMS that either doesn't balance, or if it does, it's at a pathetic rate of 30ma or so.This seems to be good quality including the case and 18awg balance leads. Highly recommend this active balancer with case!Only wished they also included a small wiring diagram in box. Saved screenshot from Amazon, so wasn't an issue, but it's my only complaint.

Second time purchasing. For some reason if my lifelong 12v pack discharged below 11v they get every hot and blow some capacitors. Not sure if is related to a damage Batery. The ideal is to disconnect the module if below some voltage.

This balancer/equalizer is doing what factory BMS/software can't. Balancing my three Valence batteries above 14.4V. Cell spread went from 30mV to under 10mV.The only problem is that the connector on my batteries is smaller than on the equalizer, so I had to improvise with some jumpers.

Been running this same balancer for years now. Have it balancing a 24ah headway cell bank and it’s done a fantastic job of keeping my cells balanced. Would buy again

Does what it says.Used the 16s board on a 16s LiFePO4 pack.This comes as a bare board with tinned wire harness, some prep is needed for it to fit your application.Added four stick on 40mm heatsinks to the capacitors as others have shown under heavy load they can fail. Moving ~5amps through a little can adds a lot of heat.Crimped on all the eyelets and heat shrink the connections.Used a rectangle of lexan to isolate and mount the board.Plugged it in, and off it went. Don't be surprised if you get a little pop when you plug it in for the first time.My Seplos 10E BMS only has a passive balancer and did a pretty terrible job on this 14.5kwh LiFePO4 pack. The top balance would always end up with 100-200mV of difference, and take DAYS to balance. I did one full cycle of the pack with this balancer attached and all cells were within 3mV of each other at end of first charge. Absolutely no comparison.Only wish list item is having some kind of indication it's doing work. It has a power light, but nothing to say if it's idle or moving juice around. But hey, it does it's job right.