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Heat dissipation of Batteries:

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NickParker

Electrical
Joined
Sep 1, 2017
Messages
458
Location
NL
HOPPECKE - Battery vendor has provided the heat dissipation sheet of vented lead acid batteries (125V DC, 62Cells, Vented lead acied)

During Float Charging,
New Battery Heat loss - 26.21W
Old Battery Heat loss - 49.69W
Heat_Loss_ayod3o.png


Is this for each battery cell ? or for the complete battery bank?

I have asked this to the manufacturer, due to COVID-19, the response is very late. Hoping for some quick inputs.
 
20mA x 2.23V/cell x 62cells = 2.76W

but that's for a 100Ah battery and you have a 505Ah battery so;
5.05 x 2.7W = 14W

then they add secret sauce for ripple loss from a crummy charger essentially doubling the loss to:

26W

so I say it's for the whole thing.

Keith Cress
kcress -
 
Don't forget the charger losses.
 
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