LiFepo4 single cell charger CC CV 2A 10$

Doctorbass · Aug 28, 2007

I found a source of LiFePo4 18650 and cheap charger for them

https://s.p10.hostingprod.com/@www.voltphreaks.com/ssl/catalog/product_info.php?products_id=28

Doc

NickF23 · Aug 28, 2007

That looks a promising source. Interesting the varying energy density of the 'power' and 'energy' cells. I suppose that given the similar voltage profiles it would be possible to mix a few of each in a parallel array to get light pack with a decent discharge rate.

Ypedal · Aug 28, 2007

The cycle life of each is not the same.. over time i think mixing them would become a problem...

xyster · Aug 28, 2007

I'm liking those single-cell chargers -- a fine method for keeping a pack balanced, IMO.

Doesn't look there's an option for tabbed cells.

CGameProgrammer · Aug 28, 2007

Interesting, but it's still $96 to charge the equivalent of a single DeWalt pack (10 cells) vs ~$35 for a DeWalt charger on eBay.

Doctorbass · Aug 28, 2007

CGameProgrammer said:
Interesting, but it's still $96 to charge the equivalent of a single DeWalt pack (10 cells) vs ~$35 for a DeWalt charger on eBay.

But the dewalt charger can only charge 10 cells at a time.. less cells is impossible without finding a big 10W 3.6V zenner diode for each cell fake...

The solution of multiple independent cahrger is very flexible :wink:
the connections are very simple and you have less possibility to brocke something du to accidental wiring error... like on the dewalt BMS...

Doc

xyster · Aug 28, 2007

CGameProgrammer said:
Interesting, but it's still $96 to charge the equivalent of a single DeWalt pack (10 cells) vs ~$35 for a DeWalt charger on eBay.

But with single cell chargers balancing the pack, it's relatively safe to forgo or bypass the BMS -- as I do with my much less safe lithium cobalt pack.

LiFepo4 single cell charger CC CV 2A 10$

Doctorbass

100 GW

NickF23

100 W

Ypedal

Moderator

xyster

10 MW

CGameProgrammer

10 kW

Doctorbass

100 GW

xyster

10 MW

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