Energy balance: The multi-cell battery is connected in series, the inconsistency of the battery itself, the inconsistency of the working temperature and other reasons, the energy balance makes up for the difference between the individual cells to do some active or passive charging or discharging management to ensure that the battery consistency and prolong battery life. Product packaging: 1pcs* BMS; 1pcs NTC.1pcs*balance cable; 1pcs*Bluetooth, Package also come with B- and P- cable, We ship within 24 hours after receiving the order, the delivery method is air freight, and the time limit is 20-25 working days to arrive., Quality Guarantee— ISO/ FCC/ RoHS/ PSE/ CE APPROVED. Over current protection—18650 LiFePO4 battery pack will stop charging and will stop discharging when current reach to the point. Over-charge over-discharge protection—18650 LiFePO4 battery pack will stop charge when a single cell voltage reaches 3.75V and stop discharge when its voltage reaches 2.2V. Temperature protection—low temperature -7? battery protection and high temperature 70? discharging battery protection. › See more product details Product information Collapse All Expand All Item details ASIN B09Y4GKVC7 Brand WHFTD Manufacturer WHFTD Warranty & Support Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here. Product Warranty: For warranty information about this product, please click here Feedback Would you like to tell us about a lower price?
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