52v 20ah battery pack for electric bike battery 48v 20ah Pay Attention : Free shipping for EU Union ,USA ,Singapore these countries . All cells are 100% Original P anasonic cells ,No Fake ,No Fake ,No Fake . Size can be customized. Specifications for 52V 20Ah Type 52V 20Ah Nominal voltage 52V Nominal capacity 20Ah Cell inside 3.7V 2500mAh 18650 cell Cell combine 14S8P-112PCS cells Cell weight 50G/Per Cell size Height 65mm Battery BMS inside 52V 14S 30A BMS Battery rated power 1500W ,1000W ,750W Battery net weight 5.6KGS Battery case PVC cased Charge port RCAport Discharge port Anderson port ,XT60,XT90,3 Pin... Handles No Battery case size 280*165*70mm Storage energy 1000 watt hours Discharge cut-off voltage 38.5V Charge cut-off voltage 58.8V Package include 1PC 52V 20Ah Li Ion battery + 1PC 58.8V batterycharger Pictures for 52V 20Ah Shipping For Eu Union buyers: All parcels usually be shipped by UPS or DPD, it no need to pay any customs fee. Theshippingtime is usually 8-12 days after dispatch. ForSwitzerland Norway Canada buyers : All parcels usually be shipped by Fast UPS ,take wiwthin 5-7 days to your door . We will write low price on package For American buyers: We send by FedEx or UPS,Theshippingtime is usually 8-15 days after dispatch. Sometimes we send UPS,and sometimes we send Fedex, we choose the faster one. No need to pay any customs fee! For Japan,Korea, Indonesia ,Malaysia ,Singapor,Tailand,Vietnam buyers We send by special shipping method ,Theshippingtime is usually 5-8 days after dispatch. For Russian / Belarus buyers: We send by CDEK. The shipping time is usually 12-25 days after dispatch. For Au ,new Zealand buyers : We will send by Au Post . Usually it will take 12 days . Why do you need lithium battery ? Lithium ion batteries are far superior to lead acid batteries and are clearly the ideal choice for use with an electric bike. There is a range of chemistry used in lithium ion batteries but the best used chemistries for electric bicycles are lithium iron phosphate (LiFePO4) and lithium manganese (LiMn). LiFePO4 has advantages of being the safest and longest lasting, while LiMn has a higher power to weight ratio, sleeker designs and also very high life time. Lithium ion batteries last about 3 to 5 times as long as lead acid batteries and weigh about three times less – approximately 6kg (Li ion) vs 15kg (lead acid) for 48V 20Ah. There is simply no comparison if you are looking for high performance. The cost is still very high for excellent quality lithium ion battery packs for electric bicycles but the greatly enhanced lifespan easily compensates for this cost difference. It is important to use a lithium ion battery designed for an electric bike as they have battery management systems inside them to limit excessive discharge, control maximum discharge rate and balance charge between cells when charging. Lithium ion batteries for electric bicycles must be specifically designed due to the presence of a battery management system (BMS) within the pack. This piece of circuitry must be set appropriately to control the amount of current draw required by the motor and to limit excessive discharge capacity. The BMS is also important for balancing cell charge between the individual cells within the battery to maintain battery life over time Sealed lead acid batteries are also not a bad option if that is what you have handy or are budget limited. They have proven through the test of time and handle the current draw of electric bicycle motors well. Absorbent glass mat (AGM) batteries are commonly used lead acid batteries for electric vehicles, they use either gel or absorbant glass mat fibres to hold the electrolyte. They have a higher energy density than typical car batteries and can be inverted without spilling acid, they cope with higher temperatures and can be charged and discharged more rapidly. You should be able to get a set of sealed lead acid batteries from a local battery shop for between $100 – $150. If running a 48V motor, you will need to get four 12V batteries and hook them up in series (aim for about 12ah each battery). You will also need to get a 48V battery charger Lead acid batteries suffer in comparison to lithium ion batteries on two important factors. Recharge times and weight. Lead acid batteries can be recharged approximately 200-300 times while high-end lithium ion batteries can be recharged over 1000 times. Lead acid batteries are also about three times as heavy. It is very important with any battery that you keep it as charged as possible as often as possible. Running a battery flat will damage it if done more than a few times and you will notice that the range noticably decreases. We recommend putting the battery on the charger when you get home from work in the evenings and then disconnecting it after a few hours when fully charged. If you are not using your bicycle during the winter months then charge it every month or so anyway to maintain and extend its life. Please note that you must not use a lead acid battery charger with lithium ion batteries! Shippng If you are from Japan ,Switzerland ,Canada ,Norway ,Chile Vietnam. before place order please contact with us Air freight to your door . FAQ What is the minimum order quantity (MOQ)? 1PC Do you ship the goods directly? Yes. I did not get all goods as I ordered, what can I do? If you did not receive some part of the shipment or the shipment was damaged, please contact the shipping agent to file a complaint. If you need any other help, please contact us. What should I do if I receive a damaged package? Additional suggestions: Always take photos of the damaged package before unpacking to record the outside damage. Make sure to proceed with the claim directly with the shipping agent representative who handles the goods delivery in your local country. Also, check the contents of any damaged/broken boxes before confirming the delivery! Do I have to pay tax on my order? For most countries no . What's your delivery time ? Within 7 days . What's your shipping time ? Around 7-15 days by UPS/FEDEX/CDEK/AU POST.... Do you accept customized battery ? Welcome . Do I have to pay tax on my order? For most countries no . 
