10PCS 4S 16.8V 40A BMS 18650 Li-ion Battery Drill Motor Charger Protection Board
$ 6.3
Description
Visit store Items for sale About us Product Details Features: 1.4 series 16.8V 40A lithium battery protection board with equalization function 2. Suitable for nominal voltage 3.7V, fully charged 4.2v lithium batteries (including 18650, 26650, polymer lithium batteries), can be used with the following 170w electric drill 3. Simple wiring, easy to use 4. Can improve the life of the extended battery 5. This product is suitable for electric drills, sprayers, LED lights, low power reverse, transformer charging and discharging batteries and other products Specification: Product name: 4 series 16.8V 40A lithium battery protection board Function:With equalization Charging voltage:DC 16.8-17.8V Continuous discharge current: maximum 40A (if the thermal environment is not good, please reduce the load current to use) Continuous charging current: 20A max Product size:45*60*4mm Application options: for nominal voltage 3.7V, fully charged 4.2v lithium batteries (including 18650, 26650 lithium batteries), can be used with the following 170w electric drill For example: the battery is 4 strings, the connected battery needs to meet the 40A discharge current, can be achieved by paralleling the battery, or buy a large discharge current. For example, the battery 2000mAH, discharge multiplier 10C, then you only need 4 series of 2 and, the maximum current can reach the discharge current of 40A, stable discharge requires 4 series of 4 and only then, and need to pay attention to heat dissipation, discharge battery power will drop quickly. 4 series of batteries, the actual full charge, voltage 16.8V, charging voltage DC17V ~ 18V, charging current depends on the connected battery, the maximum does not exceed 20A. Note: 1: Successful start of the electric drill requires four 10C-20 power batteries, or eight 5C-10C power batteries (recommended power battery models: VTC4, VTC4A, VTCSA, VTC6), 0V and 12.6V connecting wire, use more than 3 square millimeters of copper wire (can not use nickel sheet). 2: strictly according to the diagram wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, welding line can not touch any components on the board, do not intentionally short circuit. 3: the first welding battery or is charging, as long as the individual battery over 4.2V, "430" resistor will heat up to discharge (discharge to about 4.19V to stop heating) If the "430" resistor is seriously hot, please check if it is connected to the wrong wire. Package List: 1x Battery protection board Payment Method Shipping Policy Returns & Refund Policy Feedback Payment Method EBAY Managed Payment. But we only Accept your Ebay Address , please Make sure it's 100% right. Payment must be received in 5 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order. Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Shipping Policy 1. We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand. 2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders. 3. All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund. Returns & Refund Policy All package need to wait 30 days (US only n eed 7-10 days) , Please take care it.Less than 30 days,we can't take a refund . If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please keep in touch with us and double check the return address before you return it. If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item. Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.
