Apparently my EVs use active balancing. I just drove to LA and back from Sonoma and not a peep was heard from from my batteries. However, somewhere outside Coalinga when I was napping while my wife was driving I was awakened but the little ding dogs of the alarm that I set that tells me the speed has exceeded 85 mph. Still no noise from from my batteries that were harmoniously providing coulombs in response to my wife's lead foot.
Thanks. That is what figured, but it doesn't hurt to check.
I have a BMS that I can turn the balancing function on and off. I usually leave it off. I also drive two EVs that apparently use active balancers so I don't have a strong opinion either way. I know that Tesla uploads battery data on all their cars so they have developed a huge knowledge base of how their tweeks to their batteries have performed. I will be interested in the long term benefit of using an active balancer. It is always something I can add if I find out my pack is drifting and my BMS can not manage it efficiently.
This one works very well. I used it to top balance my cells, but I think it's better you don't leave it permanently attached. Reason being, when your batteries are in a low SOC it will bottom balance, then when it charges cells will keep hitting overvoltage until they top balance, repeat ad infinitum.
www.aliexpress.com
The link I posted earlier doesn't work in the UK? It is for Amazon and it's only 1.2a max.
@HighTechLab uses one I think he got on Alieexpress. Maybe he has a link that would work in the UK.
I am with your thinking, with the additional thought that I can always buy a balancer later or turn on the balancing function of my BMS if my cells drift. Thanks for the update.
I like that one but I don't have any information that shows it is active and meant to be attached full time. If it is both, I'm all over it.
I hope you meant charge pump. I am considering using active cooling on my battery pack, but I am hoping to avoid freon inside the battery compartment.
I didn't mean literally..
I am considering water cooling on my battery pack (borrowing from the PC overclocking community). A heat pump is going to far IMHO.I didn't mean literally..
The 'Heat Pump" reference was based on the technology that takes little power and transfers more power (heat energy) from one place to another instead of wasting it. Before heat pumps, electricity was applied to heat a room. Although it was 100% efficient, with use of a compressor, it was discovered that it was more efficient to move the heat than to generate it. In this case, it is more efficient to move the energy than dissapate it. Anyway, sorry for the confusion.. This is just the weird way my mind works sometimes.
