3-cell 11.1V/12.6V 18650 lithium battery protection board 40A current rating

$0.77$0.90

Delivery:

Scope of Application: Suitable for lithium batteries with a nominal voltage of 3.7V and a full charge voltage of 4.2V (including 18650, 26650, and polymer lithium batteries, with no restrictions on physical dimensions).

Product dimensions: 41 × 55 × 3.4 mm (Enhanced Edition)
Product Weight: 8.8g (Enhanced Version)
Charging Voltage: 12.6V–13.6V
Continuous Discharge Current (Maximum): 40A (Reduce load current if thermal conditions are poor)
Continuous Charge Current (Maximum): 20A
Enhanced Version: Suitable for power drills with a starting current below 80A and power below 130W.

Important Note 1: To successfully start the power drill, three 15C-20C power batteries or six 10C-15C power batteries are required (standard 18650 batteries will not start the drill!!!). For the 0V and 12.6V connection cables, use copper wire with a cross-sectional area of 3 square millimetres or greater (do not use flat wire!!!).

Precaution 2: Connect the 0V, 4.2V, 8.4V, and 12.6V terminals strictly according to the diagram. Do not deliberately short-circuit them.
Precaution 3: During battery charging, heating of the ‘430’ resistor is normal, indicating the balancing circuit is functioning. If the ‘430’ resistor also heats when not charging, please check for incorrect wiring.

For customers with limited electronics knowledge: Do not mix high-quality batteries with inferior ones! The closer the capacity and internal resistance of the three batteries, the better! (Using two good batteries plus one poor battery yields the same performance as three poor batteries.)

Shipping matters:

China Post Small Parcel:   15-20 days

EMS:10-15 days

FedEx:5-7 days

DHL Express:5-7 days

UPS:4-7 day

Receive order preparation time:   

Ships 1-3 days after receipt of order

Tax issues:

1. As each country charges different taxes on parcels, you need to know whether the country of your own address needs to charge taxes before placing an order.

2. If you need to reduce the invoice amount, you can contact customer service or e-mail contact.

3.The package arrives safely in the buyer’s country and the merchant is not responsible if the package is (returned) because the buyer has not paid the tax.

Other issues:

If you need to find other electronic products or have any questions you can contact customer service or email. (We will get back to you as soon as possible)