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You are here:Home>>Electric Bike Battery >> 72v 20ah LiFePO4battery pack With Balance BMS System , CC / CV Charger, Discharge Connector Plug , LCD Display , 100% 3.2V Cells , LiFePO4 Long Cycle time ! Battery Name LiFePO4 Electric Bike Battery Combination 24S 1P Nominal voltage 72V Nominal capacity 20Ah Standard discharge current 20A (1C) Max discharge current 40A(2C) Standard charge current 6A Fast charge current 10A Over discharge cut off voltage/series 52.8V (2.2 ± 0.06V) Over charge protection voltage/series 90V(3.75 ± 0.06V) Discharge working temperature -20-60°C Charge working temperature 0-45°C Recommended storage temperature 23 ± 5°C Net Weight about 13Kg Size about 280*250*120 mm BMSModel LiFePO4 BMS System Balance voltage for single cell 3.6V Balance current for single cell 35±5mA Over charge detection voltage 3.75 ± 0.025V Over charge release voltage 3.70 ± 0.025V Over discharge detection voltage 2.2 ± 0.025V Over discharge release voltage 2.6 ± 0.025V Over current detection voltage 150mV Current consumption ≤20μA Over charge detection delay time 0.5S—2S Over discharge detection delay time 10mS—200mS Detection delay time 250uS Release condition Cut load Protection circuitry(MOSFET) ≤20mΩ Charger Model LiFePO4 Smart mode CC / CV Maximum voltage 90 V Output Capacity 5~6 A AC Voltage 110 or 220V Shipping by useFedex or UPSExpress 12~18 days delivery U.S. EU Free duty and tax （other countries, we use other transportation） ShippingContact us for more details about packing, Australia , Russian , Ukraine delivery time 15~25 days Q: What productions do you make ? A: The main productus are LiFePO4 , 18650 battery pack, e-bike battery, polymer battery, or any customized battery projects. Q: How about your company intelligence? A: ISO9001 certification, China Hi-tech company, 10 million battery assurance, 8 patents, Almost all products are MSDS, FCC , UN38.3, IEC62133, CB,etc certificated. Q: How about the quality guarantee period? A: One year.