Specification: Rated Capacity: 50Ah/30Ah/16Ah/10Ah Nominal Voltage: 12.8V Energy: 640Wh/384Wh/204.8Wh/128Wh BMS: 50A/30A/16A/10A Voltage: 14.4V~14.6V Storage Temperature Range: 5°F~122°F Charge Method: CC/CV Dimension: 50Ah: 7.68 x 6.42 x 6.61 inch 30Ah: 6.89 x 2.95 x 6.50 inch 16Ah: 5.91 x 3.86 x 3.66 inch 10Ah: 5.9 x 2.6 x 3.7 inch Number of Series and Parallel Connection: 4P4S Package included: 1X 12.8V 10Ah/16Ah/30Ah/50Ah Lithium Battery Note: Batteries should be charged with a 12V charger to avoid charging multiple batteries at the same time.PaymentShippingTerms of salesContact usPayment1. We support payment methods on eBay. 2. Please pay the money within 7 days after the auction ended. 3. Non-Paying Bidders: Serious Buyer Only! Please place bid or "Buy it now" only if you agree the price and terms of the product and no argument after the auction end. And payment must be received within 7 business days of the auction close. We will report Non-paying buyer to eBay.Shipping1.Items are generally shipped out in 1-3 business day after your payment has been cleared (Sat. & Sun. excluded.) 2.Orders from the United States Warehouse will be shipped out via USPS or UPS. The shipment usually takes 3-7 business days(Saturday and Sunday excluded), if you need the item urgently, please contact us for detail before purchasing. 3.Local pick up is not available. 4.We do not ship to APO, FPO, Alaska, Hawaii and Puerto Rico addresses, and we are unable to ship to PO BOX for this item. Please provide your psychical address.Terms of sales1.It is our goal to provide our customer 100% satisfaction. 2.30 Days Money Back Guarantee and Full One Year Limited Warranty from the date of original purchase. 3.Product should be returned with original packages and must be returned in like-new condition with all accessories and packaging. 4.In all cases, buyers pay shipping fees at their own cost to return products for exchange or refund. We will be responsible for the postage of replacements. Refund will be made upon receipt of the returned item. 5.If the return is due to the mistakes of buyers, for example, wrong purchase, no need of the batteries after transaction, or other artificial damages, P&P would be deducted while refunding. 6.Refund will be made upon receipt of the returned item. 7.Our shipping rates include the cost of shipping, handling, packaging and related manpower costs. 8.We are not responsible for wrong or undeliverable address. We reserve the right to charge the shipping fee again for returned items due to wrong address.Contact usWe have always been trying our best to provide the best service and reliable products for every customer. Please contact us via eBay message or email to resolve the issue before leaving negative feedback.