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)
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.

# PCB BMS Lithium Battery Charger Protection Board This is balance version!
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).

# PCB BMS Lithium Battery Charger Protection Board Package Included:
1PC x Balance BMS board

Here is our Market

1. We accept OEM/ODM service.

2. We accept whole bulk dropshipping order.

3. Quick delivery time.

FAQ
Q1. What is your lead time?
A: We will ship out the goods within 5 working days after received the payment, finally depends on quantities.

Q2. What is your sample policy?
A: Welcome to ask sample, we can send out the sample within 2 days, please contact us.

Q3. Do you test all your goods before delivery?
A: Yes, we have QC department we will do 100% test before the shipment.

Q4. What is your warranty?
A: Our warranty is 90 days after goods have been received.

Q5. What's the MOQ for your products?
A: The MOQ for each product is different, but we also accept small order, welcome to contact us.

Q6. How do I pay for the order?
A: You can draft an order by yourself and pay it , or contact us pay by TT , Paypal, Alipay, Wechat etc.

Q7. Do you accept the whole bulk dropshipping order ?
A: Yes, please contact us.