Specification: 36V 21AH Li-ion Battery with Case,BMS and Charger: Recommend to use for 36V 200W, 36V 250W, 36V 350W, 36V 500W Motor. Easy to install, direct fixed under bicycle seat. Note:if the motor more than 500w,pls contact us directly Cell type: Samsung/ LG Battery Model 36V 21Ah Nominal Capacity (AH) 21ah Nominal Voltage (V) 36V Source Resistance (mOmega) about 40 Cell Specification 3.7V 3AH Cell Combination 7-parallel 10-series Cell Size 18650 Cell Quantity (parallel*series) 70 Discharge Cutoff Voltage (V) 30 +/- 1V Charge Cutoff Voltage (V) 42V Rated Discharge Current (A) 24A Instantaneous Maximum Discharge Current (A) 15A Maximum Continuous Discharge Current (A) 24A Maximum Continuous Charge Current (A) 5A Charge Mode CC/CV Standard Charge Current (A) 2A Charge Time under Standard Charge Current 7 Fast Charge Current (A) 5A Charge Time under Fast Charge Current 3 Charge Temperature Range -20 - 60 Discharge Temperature Range -20 - 60 Battery Size 380*110*80mm 435*110*80mm(Handle unfold) Battery Net Weight 4.2kgs Battery Gross Weight 5.5kgs About Us Zone Green Power CO.,Ltd is a professional battery manufacturer in China, provides a full range of primary lithium batteries, Electric bike li-ion battery pack,rechargeable lithium batteries, Ni-CD, Ni-MH batteries, and battery packs for industrial, commercial, medical and military applications. Zone Green Power's manufacturing and facilities are ISO9001:2001 and ISO14001:2004 registered. Our products are compliant with CE, RoHS and have passed UN transportation testing. We are committed to total quality control and to achieving the quality level demanded by our customers. Shipping We Ship your orders within 2-4 business days after the payment cleared as we have almost all items instock. EMS:Item shipped from EMS, reach most of the countries within 6 to 15 days. TNT:Item shipped from TNT, reach most of the countries within 4 to 7 days Quality We are professional Electric bike battery supplier on aliexpress, We have perfect production process and all kinds of scientific management tools to control the quality,such as Six Sigma,PFMEA,CP,SPC and so on.The battery is brand new and every single item you buy from our company has been compeletly tested before shipping , after several times of testing , so we can guarantee the quality. Service We are willing to answer any questions about the products no matter Pre sale or after sale. We care about our customer satisfaction! If you have any question,pls contact us directly or leave us message,we will reply as soon as possible. Refund When you received the item, please check the quality and quantity in time. if there is any problem in 7days,Feedback the reason where it gets wrong to us. we will resolve it asap,If the products still can't work,We will send new replacement or refund once the item is received. Feedback Feedback will be left in a timely manner after feedback has been received. Should there be any problems with your purchase, please do not leave neutral or negative feedback before contacting us for resolution. We strive to make every transaction a positive experience and will do everything possible to correct any problem. Please don't hesitate to contact us if you have any questions or concerns before or after your purchase. We are committed to your 100% satisfaction. 
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