Some design input appreciated!!

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Re: Some design input appreciated!!

Postby Dex » Tue Jun 24, 2014 5:52 pm

davidg wrote:plus cost of a proper BMS.

What constitutes a proper BMS for lipo cells >40Ahr?
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Re: Some design input appreciated!!

Postby davidg » Tue Jun 24, 2014 10:16 pm

Dex wrote:What constitutes a proper BMS for lipo cells >40Ahr?

In my opinion a system that can balance the cells for decent top of charge, it partly depends on the systems that's offering the charge as well. It should also be able to cut off the power should the batteries reach state of discharge or possibly charge which might damage them is reached. Keeping cells closely balanced seems to help with the long term operation of the cells. It can take a bit of fiddling to get the setting right, not so much a the BMS itself, but the charge/discharge ok with the BMS, cut offs are a last resort and should never require the bms to activate a cut off situation if the rest of the system is programmed correctly. :)
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