UPP ebike battery 60V 52V 48V 20Ah Lithium Pack for 02000W Electric Bike Motor. Why choose our Unit Pack Power battery? 10 years battery packing experience, from 36V 48V 52V to DIY Voltage/Size, all we can make it for you, Mature production technology, and filter the high consistency cells, we know how to make a reliable and safe battery for customers. There are Grade A B C level battery, Unit Pack Power only use grade A cell for battery, safest packing process, never use cheap / false cells with false capacity / low price to attract buyers. Price = quality = customer’s service, you want to get a long range / long life / safe battery for your bike, or want to get a unknown cells battery back your home? Ebike battery charging cycle exceeds 1000 times. High-quality electric cells and a built-in BMS protection board prevent over-charge, over-discharge, over-current and short-circuit, ensuring long service life. Our battery fits most motor kits, for example: Bafang, Voilamart, CSC, Tongsheng, Ebikling, but exclude these four: Bosch, SHIMANO, Yamaha, Panasonic. Unit Pack Power assemble ALL our batteries in our factory, Professional imported machine spot welding, neat electric welding, cleverly designed the routing direction. 13S 5P(65pcs cells). 14S 5P(70pcs cells). 16S 4P(64pcs cells). Item Location: London, UK and Westhausen, Germany. If the battery has a power switch, please open it during charging, can help to charge more full. The lithium battery can be charged at any time, it is not necessary that all energy is exhausted before charging. The battery should be used within a range of operating temperatures. Otherwise, there may be a loss of properties, leakage and / or rust. The rechargeable battery should be used within a short period of time after recharging, as the battery may self-discharge during prolonged storage. If long-term storage is required, the battery, which is 50% to 60% stored in a voltage range, is best because storage at higher voltage can result in loss of performance. Do not immerse the battery in water or seawater. Store the battery in a cool, dry environment. The battery should not be used near a heat source as a fire or heater. Use the charger specifically for charging. Do not interchange the position and the negative terminals. Do not connect the battery electrodes to a power outlet. Do not throw the battery in fire or heating. Do not short-circuit the battery by connecting the positive and negative poles directly to metal objects. Do not carry or store the battery with metal objects such as hairpins, necklaces, etc. Do not hit the battery, throw any trampling damage or throw it. Do not solder the battery directly and do not pierce it with a nail or other sharp object. After one month we can send BMS or cells to you for repair, or you can send it back to repair as well. Should meet all return requirements. Bought the product within one month. Return package should be complete, we will check the the package after receive it. The battery goes over water. The battery is broken man- made. The cells are burnt out after using. Return the battery without reason. Open a case without contacting us. Note Before Order : Our battery can fit all motor kit, but exclude these four : Bosch, SHIMANO, Yamaha , Panasonic. We highly appreciate your understanding and patience! Thank you so much for your order! Our first goal is to make you 100% happy!