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2S 20A 7.4V 8.4V 18650 battery protection board/BMS board Standard/Balance
NOTE: after batteries connected to BMS please connect charging voltage for short time to the BMS to activate it.
Applicable scope: Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, without limitation on the dimensions)
Product Size: 45*15*3.4mm (Standard), 48*20*3.4mm (Balancing)
Charging voltage: 8.4V - 9.0V
Continuous discharge current (upper limit): 20A (If the cooling environment is not good, reduce the load current use)
Continuous charge current (upper limit): 10A
Standard Edition: Suitable for starting drills with currents up to 25A below 50W, or resistive loads below 168W.
Balanced version: Suitable for starting currents below 25A and below 50W power drills, or resistive loads below 168W, with balanced charging function.
Note 1: The successful start of power drill requires two 10C-20C power batteries, or four 5C-10C power batteries (ordinary 18650 can not start drill! ! !); 0V and 8.4V cable, use 2 square mm Above copper wire (cannot use nickel plate!!!)
Note 2: Connect 0V, 4.2V, 8.4V according to the diagram strictly. When connecting the battery for the first time, it needs to be charged before output.
Note 3: When the battery is charged, “430” resistance heating is a normal phenomenon, indicating that the equalizing circuit is working; if the “430” resistance is also heating in the state of not charging, please check whether the wrong line is connected.
For some customers with poor electronic foundation, please explain: Do not mix good batteries and bad batteries together! The capacity/internal resistance of 2 batteries should be as close as possible! (1 good battery + 1 bad battery = 2 battery use effect).
Package Include:
1PCS * 2S 20A 7.4V 8.4V 18650 Lithium battery protection board
Before purchase:
1. All the goods are in stock and we will dispatch immediately if we receive the order.
2.Please read the item description, if you have any question, do not hesitate to contact us.
Shipment:
1.1-2 days to ship(except for the pro-order item)
After purchase:
1.If you are satisfied,please give us 5 stars praise.
2.Please contact us before you are going to give us bad review. We are helpful and will solve the problems.
if you receive a defect item,please contact us at once with item picture or video
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