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Tenergy 32002 Protection Circuit Module (PCB) Round for 3.7V Li-Polymer Battery 3.5A Working (6A cut-off)

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Protection Circuit Module (PCB)

Li-Ion and Li-Poly battery packs should always use a protection circuit to prevent the cell from overcharging or over-discharging. The Tenergy 32002 protection circuit module is designed for use within a single-cell battery pack and has a working current of 3.5A with a cut-off at 6A. The round circuit fits nicely on the bottom of your Li-Ion or Li-Poly 3.6/3.7V 18650 cell for a neat, streamlined battery pack.

B+ Connect to cell's anode
B- Connect to cell's cathode
P+ Connect to the cell's output or charger's anode
P- Connect to the cell's output or charger's cathode

Item Content Criterion
Over-charge Protection Over-charge protection voltage 4.325 ± 0.05V
Over-charge protection relief voltage 4.125 ± 0.10V
Delay time for over-charge protection 960-1400ms
Charge protection Rated charge current ≤ 3.5A
Over-discharge protection Over-discharge protection voltage 2.5 ± 0.10V
Over-discharge protection relief voltage 2.9 ± 0.10V
Rated discharge current ≤ 4A
Discharge current protection 5~7A
Delay time for over-discharge protection 115-173ms
Over-current protection Condition to release over-current protection Cut off load
Peak current protection split second 6.9A
Delay time for split second protection 7.1-11ms
Short protection Short circuit protection PASS
Condition to release short circuit protection Cut off load
Interior resistance Working impedance between P+ & P- VC = 4.2V; RDS ≤ 60mΩ
Current consumption Self consumption 6.0μA Max
Dimensions (R x H) 0.34" x 0.02" (8.65 x 0.5 mm)

Application Notes: We do NOT provide engineering support for this item. It is up to the purchaser to determine suitability and manage the use of this product. If this product is modified (soldered onto) it cannot be returned.
2 Reviews
50% (1)
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50% (1)
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By Allen
November 6, 2018
I bought this for a cheap work light and makes working awesome.
By JoeH
Suffern, New York
Unit Hangs
March 10, 2017
The idea of this battery protection circuit is great. However, once it goes into a protection mode it does not come back. Item 7 in the users manual for this device seems to indicate this hangup but it occurs not only on first time use as it claims but after going into protection mode also.
There are no questions or answers for this item.

Tenergy 32002 Protection Circuit Module (PCB) Round for 3.7V Li-Polymer Battery 3.5A Working (6A cut-off)

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