Description: 2S2P 7.4V 18650 Battery Holder Storage Box with Li-Ion PCM Protection Board 2S2P 7.4V 18650 Battery Holder Storage Box Case 4 Slot Charging with Li-Ion PCM Protection Circuit Board DIY Power Container Description: This is a 18650 battery box with a protection circuit, Type 2S2P, Every 2pcs batteries are connected in parallel, and then connected in series for protection, and the combined output voltage is 7.4V. With this battery case, you can easily and quickly DIY the battery pack. After assembling the battery pack, double the capacity, double the voltage! This product has excellent technology and quality, and is the ideal choice for DIY battery pack and refitted equipment power supply. Notice: 1> Wrong polarity placement may cause dangerous accident in charging and discharging!!! 2> All batteries that make up the battery pack must keep the same characteristics (including brand, model, capacity, internal resistance, remaining power, etc.), This product will enter the protection state after each installation combination or disassembly and reassembly, resulting in no output! Don't worry, the protection can be released by charging. Parameters: Name: 2S2P 18650 Battery Holder (Battery not included) Type: 18650-2S2P-7.4V Standard Voltage: 7.4V Max Charging Current: 4A Max Continuous Discharge Current: 4A Overcharge Protection Voltage: 4.25V±0.025V (Single cell) Over-discharge Protection Voltage: 2.40V±0.08V (Single cell) Overcurrent Protection: 10A±2A Overall Size: 84x80x18.6mm Weight: about 70g Tips: Because it is a battery case with every 2pcs batteries are connected in parallel, and then connected in series, the protection circuit is one, so in the process of removing and installing the battery will cause voltage instability, the instantaneous voltage is not 7.4V, in this case will cause a protection, Once protected, there is no voltage output, At this point, only need to lift the protection status can be restored to normal. How to remove the protection status? The principle of lifting protection is to add a greater than or equal to the battery pack voltage at the output end of the battery pack to make the protection board exit the protection state. After the battery is inserted, it causes protection without output. Solution: Method 1: Use a 8.4V lithium battery charger, the red line is connected to the positive terminal of the charger, the black line is connected to the negative terminal of the charger, charge the battery pack to lifting protection. Generally, the protection can be released in 1-3 seconds. Method 2:Instantaneous short-circuit between the output negative electrode (black wire) and the negative electrode of the battery pack can release the protection state. Take 2S2P as an example: use the black wire (P-) to momentarily contact the solder joint of B- (battery #3-4 negative pole), and the protection state can be released. (Note: this operation will produce a slight spark, it is normal) Other causes of protection and removal methods: 1, Over charge protection: remove the charger; 2, Over discharge protection: connect lithium battery charger, charge to each battery 3.3V above; 3, Over-current protection: remove the load that caused overcurrent; 4, Short circuit protection: remove the cause of the short circuit. Packing List: 1pcs x 2S2P 18650 7.4V Battery Holder Case(Battery not included) About PaymentAbout DeliveryAbout ReturnsAbout FeedbackContact usAbout PaymentPlease leave note for your special request (e.g. Colors or Size) in ebay 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.About DeliveryItem will be shipped within one business day after full payment is received.Except The United States and Russia we shipped use Epack, We ship worldwide with standard shipping by Hong Kong Air mail. This international order may take longer to arrive, Normally the shipment to worldwide is used to take 35 to 40 business days, exclude Sat & Sun..Delivery time depends on destination and other factors, if you still not received it in normal days. Please don’t worry, I hope you can give me a message before you do any action.About ReturnsIf 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 contact us and double check the return address before you return it.Original and return shipping fee will not be refunded or reimbursed under all circumstances. You must agree and acknowledge this term if you bid for this item. Therefore, please do not complain about having to ship back at your own expense.Any feedback. We are committed to resolve all issues in a friendly and satisfactory manner.We always reply to ebay messages within 1-2 business days. 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If no response within 24 Hours, please check the spam of mail box or kindly re-send it to us.We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact. If you haven't received item in 30 days, please contact us and we will arrange refund or resend.
Price: 10.5 USD
Location: Shenzhen
End Time: 2024-03-07T12:52:16.000Z
Shipping Cost: 1 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Brand: Unbranded/Generic
MPN: Does Not Apply
Country/Region of Manufacture: China
Standard Voltage:: 7.4V
Type: 18650-2S2P-7.4V
Max Charging Current:: 4A
Overall Size:: 84x80x18.6mm
Weight:: about 70g