1.Life expectancy is two times that of lead-acid batteries.The weight is more lighter

2.No memory effect and rechargeable.the battery life is more longer

3.Safer and more environmentally friendly, No heavy metals and hazardous substances.

4.Built-in IC chip will prevent battery pack over charge, over discharge, over-current,

over-heat, short circuit .

5.Avoiding mechanical accidents caused by vibration.

Battery Model:48V 20Ah

Nominal Voltage: 48V

Nominal Capacity: 20Ah

Cell Specification :3.7V 3.4AH 18650 Cell

Cell OverCharge Protection Voltage:4.2V/Cell

Cell Overdischarge Protection Voltage:2.8V/cell

Cell Source Resistance (mΩ) :about 40mΩ

Composed Type: 13Series 6Paralles  13S6P

BMS:15 Amp continuous 50±10Amp maximum

Fit Motor Power :  250W 350W 500W  750W

Discharge Cutoff Voltage (V) :38+-1V

Charge Cutoff Voltage (V) :54.6V

Rated Discharge Current (A): 20A

Maximum peak discharge current (A):60A

Maximum Continuous Discharge Current (A) :20A

Charger mode:CC/CV(Constant Current Constant Voltage)

Standard Charge Current (A) :2A

Charge Time under Standard Charge Current :6h

Max Fast Charge Current (A):5A

Charge Time under Fast Charge Current:2.5h

Discharge Temperature: -20 to 65°C

Charge Temperature: 0 to 45°C

Dimensions:  390*110*76.6mm

Battery Weight: 5.2kg

Cycle life: ≥80% capacity after 800 cycles.

Lithium battery features:

1.High energy density, Fast charging

2. Light weight, small size  Pollution-free, environment friendly

3. Long cycle life; It extends its cycle life up to 600-800 cycles

4. With short-circuit production function, safe and reliable

5. Large overcharge tolerance and safe performance the batterylife is more longer

6. Simplifying battery management system (BMS such as overcharge/ discharge,over current, short circuit,

over temperature andbalancing) and Battery Charger

Precautions:

1.Do not reverse the position and negative terminals.

2.Do not connect the battery electrodes to an electrical outlet.

3.Do not discard the battery in fire or a heater.

4.Does not use or leave the battery near a heat source as fire or heater

5.Do not short circuit, over-charge or over-discharge the battery pack

6.Do not strike, trample or throw the battery.

7.Do not directly solder the battery and pierce the battery with a nailor other sharp objects

8.Do not short-circuit the battery by directly connecting the positive andnegative terminals with metal objects.

9.Do not transport or store the battery together with metal objects suchas hairpins, necklaces, etc.

10.Use the battery charger specifically for that purpose when recharging.Use a constant current, constantvoltage

(CC/CV) lithium-ion (Li+)batterycharge controller

11.Do not immerse the battery in water or seawater, and keep the batteryin a cool dry surrounding if it stands by.

12.If shelve a long time suggested that the battery need for regular recharging (even if not use),must charge and

discharge for three months one time;