This is the only authorised store of Unit Pack Power on Amazon - - - 2 Month Return Support Unit Pack Power Official (2-5 Business Days Delivery&2 Moth Return Support)- Order from official,ensure receive a quality product&After Sales Support ///////////////////////////////////////////////////////////////////////////////////////////////////////////////// - - - - - - - - To ensure you receive a 100% full capacity pack, not be deceived by fake product, please read below information carefully before order: Best 18650 cells are 2500mAh-2600mAh: True Capacity Battery Pack, Eg: 48V 20Ah (it takes 104PCS cells(13*8=104) to reach 48v 20Ah(13S8P) Size：260*150*70MM(10.23*5.9*2.76inch) Weight：13*8*0.05kg= 5.2Kg BMS Board: 20A-50A(We can put 50A BMS board for 20Ah, it is safe) Fake Capacity Battery Pack: (Reduce the cells qty， riding distance is shorter) Size：260*150*70MM (10.23*4.72*2.76inch) or smaler(To reach the correct size, some seller Sand filling the pack.) Weight: only 3.4-3.8Kg BMS Board: Only 20-30A (because too large BMS board will destroy the battery pack, as their capacity is lower than 20Ah, they can not built pack with BMS board that higher than 30A) 2 Month Return Support&2-5 Buseiness Days Fast Delivery 2 Month Return Support - - - This product is fufilled by seller, not amazon, if you need return the product, please communicate with seller ( uppofficial @ 163.com) but not contact amazon. ////////////////////////////////////////////////////////////////////////////////////////// 2-5 Business Days Delivery - - - Please ignore the Estimate Delivery date provided by amazon system, this product is fufilled by seller, we ship from Unit Pack Power USA warehouse(CA/TX), it will delivered within 2-5 business days after order. ///////////////////////////////////////////////////////////////////////////////////////// 2 Month Return Support&2-5 Buseiness Days Fast Delivery 2 Month Return Support - - - This product is fufilled by seller, not amazon, if you need return the product, please communicate with seller ( uppofficial @ 163.com) but not contact amazon. ////////////////////////////////////////////////////////////////////////////////////////// 2-5 Business Days Delivery - - - Please ignore the Estimate Delivery date provided by amazon system, this product is fufilled by seller, we ship from Unit Pack Power USA warehouse(CA/TX), it will delivered within 2-5 business days after order. ///////////////////////////////////////////////////////////////////////////////////////// Several Parameter for you option: Several Parameter for your option (Parameter selection button under the main image section)If you prefer other discharge connector(Eg:Anderson/XT60/XT90/Bullet), pls ask from seller after order ---------------------------------------------- 36V 15Ah 100-500W (10S6P) Nominal Voltage: 36VRated Capacity: 15AhMax Constant Discharge Current:20A( BMS)Apply for: 100W-500WSize/Weight: 190*125*70MM(3.1kg)Charger : 36V 2ADischarge: Anderson/XT60(Including Male&Female) ---------------------------------------------- 48V 20AH 200W-1000W&200-1800W (13S8P) Nominal Voltage: 48VRated Capacity: 20AhMax Constant Discharge Current:30A/50A( BMS)Apply for: 200W-1000W &200-1800W MotorSize/Weight: 260*150*70MM(5.3kg)Charger : 54.6V 2.5ADischarge: Anderson/XT60(Including Male&Female) ---------------------------------------------- 52V 20Ah 200-1500W&200W-2000W (14S8P) Nominal Voltage: 52VRated Capacity: 20AhMax Constant Discharge Current:40A&50A( BMS)Apply for: 200-1500W&200W-2000W MotorSize/Weight: 280*150*70MM(5.75kg)Charger : 58.8V 2.5A/58.8V 3ADischarge: XT60(Including Male&Female) ---------------------------------------------- 60V 20AH 100W-2200W (16S8P) Nominal Voltage: 60VRated Capacity: 20AhMax Constant Discharge Current:50A( BMS)Apply for: 200W-2200W MotorSize/Weight: 300*160*70MM(6.6kg)Charger : 67.2V 3ADischarge: XT60(Including Male&Female) ---------------------------------------------- 72V 20Ah 200-3300W&72V 20Ah 200-2500W（10S8P) Nominal Voltage: 72VRated Capacity: 20AhMax Constant Discharge Current:60A/50A( BMS)Apply for: 200W-3300W/200-2500W MotorSize/Weight: 400*70*150MM（8.2Kg）Charger : 84V 4ADischarge: XT60(Including Male&Female) ---------------------------------------------- 72V 25AH 200W-3300W (20S10P) Nominal Voltage: 72VRated Capacity: 25AhMax Constant Discharge Current:60A( BMS)Apply for: 200W-3300W MotorSize/Weight: 400*70*181MM(10.2kg)Charger : 67.2V 3ADischarge: XT60(Including Male&Female) ---------------------------------------------- 60V 25AHh 100W-2200W (16S10P) Nominal Voltage: 60VRated Capacity: 25AhMax Constant Discharge Current:50A( BMS)Apply for: 200W-2200W MotorSize/Weight: 25Ah:317*181*70MM(8.2Kg)Charger : 67.2V 3ADischarge: XT60(Including Male&Female) ---------------------------------------------- 60V 40Ah 0-2200W(16S1P) Nominal Voltage:60VRated Capacity: 40AhMax Constant Discharge Current:50A( BMS)Apply for: 200W-2200WSize/Weight: 310*230*120MM (14.5Kg)Charger :67.2V 5ADischarge: XT60(Including Male&Female) ---------------------------------------------- Learn more about lithium battery pack 1. About shipment: Please ignore the delivery Estimate date in system, this product is fufilled by seller, not Amazon, We ship from USA warehouse via Fedex , package delivered within 2-5 business days.2.The best stability and consistency of Chinese 18650 batteries is 2000-2600mah, other larger capacity cells but cheap are B/C Grade Cells, B/C Grade cell problems are not obvious at the beginning,but for long time use is waste money.3.Pls look at the number of strings and parallels of the battery pack , and also capacity of a single cell . (E.g : it writes "7P each ,each cell is 2500mah ", but the title writes " 48V 20Ah ", that must be deceiving consumers , because 7*2.5=17.5Ah )4.Welding process of the battery pack decide whether a company's is professiona l-- Good battery welding should be neat electric weld , clearly designed routing direction . A good welding process will improve battery performance and safety. Rough craftsmanship will bring many hidden dangers. Click Here Click Here Click Here Click Here Click Here Click Here Avaliable Voltage 48V 36V/48V/52V 48V/52V/36V 36V/48V/52V 36V/48V 48V/52V Avaliable Capacity 50Ah 13Ah/15Ah/20Ah 13Ah/15Ah/16Ah/17.5Ah 13Ah/15Ah/20Ah 15Ah/20Ah 20Ah Battery Cell 50Ah LifePO4 Cell G2500 Cell/Tesla 4800mAh Cell G2500 Cell/Panasonic Cell G2500 Cell G2500 Cell G2500 Cell Apply for Motor 200-1800W 200-1000W/200-1500W 200-1000W/200-1500W 200-1000W/200-1500W 200-1000W 200-1000W/200-1500W BMS 50A 20A/30A/50A 30A/45A 20A/30A/50A 30A 20A/30A/40A/50A US Stock ✓ ✓ ✓ ✓ ✓ ✓