Top Balancing new Aliexpress Lifepo4 cells, 200ah, stuck on 3.32v, have I been scammed?

[Just John]

I have the offer of a quality 12 volt power supply that gives out 200 amps, It's an old car power supply for diagnostics when the car battery is flat. I have been using a 10 amp lab power supply brought from Amazon ,cheap, but the power button is knackered so it has to go back .

I'd look at the specification of the 200 amp supply closely, generally speaking anything designed for automotive 12 volt batteries is not adjustable for LiFePO4.
With cheap "lab" supplies you generally get what you pay for, don't expect them to last long. They certainly work, but for how long is the question.

 

[tinkertaylor]

It's not to charge the batteries is to supply the car with 12 volts while the batteries not connected.

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