Disappointment with the extremely slow balance charging of the Turnigy 8150 got me thinking about a new project.
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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search for the active cell ballancer ic's. most producer have oneor two of them… the active ones will transfer the power instead of dissipating it… on sollar applications is alot more efficient…
CAnanyone answer if can use a iMax B6 hobby charger to balance DIScharge a series of cells?(6S capable- so 6 cells for example) Wanting to attempt to get capacity of 6 at a time verses one at a time.
Can u build 6-cells/8-cells battery charger? it will be help me alot
bottom balance your pack
I use car headlight to put load for bottom balance – easy & cheap and can see the light
I have a Icharger 4010 Duo – charges up to 10 cells and up to 70 amps – Im charging 12 volt 100ah Lifepo4 – it balances cells too – for power in my van –
This may (probably is) be a stupid question, but could you use a monitoring circuit and relays.
Once the battery came up to 3.6, have the relay isolate it from the charger? Would this cause problems
with the charger? Not sure, that's why I watch your videos. ๐
1 Arduino is enough. With some 74HC4051 it could be used to measure 100 cells if you want.
Would it be possible to mod the lower end of the discharge in that controller to be something like 3.2v. That should bring the pack back into a range where the full 1 amp kicks in?
Scratch what I originally wrote. Forgot you have those batteries in circuit. We could go in deeper complexity but I think you could do what you were saying with 5 arduinos. As far as the communication I would use SPI. Originally I said to remove the ground but given this is in circuit it's more of a pain really.
Instead of light bulbs, you might want to use discharge resistor with dual colour LED's, or two LED's back-to-back. One colour for charging and another for discharging. A single lamp will not indicate current direction. Thanksfortge thought-provoking video, Julian.
Can't you do the same thing with one PIC and the right software? No need for Arduinoitis.
i'd pay you good money for a accurate 1a + 6s balance device
I look forward to the project. do you have a video on conversion of that battery pack to lipo?
The firmware on ALL Chinese chargers suck.
are you using multiple arduinos because of the positive and negative and multiple voltages in the pack?
The problem might be in your battery pack, just replace that cell.