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Constructing a 3s li-ion battery pack with a bms?

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Cool Name11

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I want to construct a 3 s 18650 li-ion battery pack with a bms, could somebody please help me in constructing this circuit i have no idea about the bms and the connections, also please provide a link of all the product that will be used
 

audioguru

Well-Known Member
Most Helpful Member
Why talk using only 3 letters? What is a BMS?? Better Money Service?
I think you want a 3-cells balanced Lithium battery charger and a circuit to detect low battery voltage and disconnect the load. IC manufacturers make Lithium battery charger ICs and show circuits so that the cells are balanced.

EDIT: My local hobby store sells good Lithium battery chargers for the multi-cell batteries used in model airplanes cars and helicopters. ebay also has them but some (most?) are garbage.
 

Les Jones

Well-Known Member
Most Helpful Member
To me BMS has always meant bright mild steel. Maybe he wants to build it in a metal box.

Les.
 

audioguru

Well-Known Member
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If he wants a Battery Monitoring System then he should ask for one.
 
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