Battery parameters:

• Battery Model: 48v 40ah
• Nominal Voltage (V):48v
• Cut off voltage: 40V
• Rated voltage: 51.2V
• Charging voltage: 58.4V
• Nominal Capacity (AH): 40Ah
• Instantaneous Maximum Discharge Current (A): 100A
• Maximum Continuous Discharge Current (A): 50A
• Standard Charge Current (A):5A
• Charge Time under Standard Charge Current:about 6~8 hours
• The life cycle:about 1000 times
• BMS:50A
• Cell Size (L*W*T):  160*190*260 mm/6.3*7.5*10.24 inch
• Battery Weight:   About 13.4 kg/29.54 lb
• Battery Power: 1600 W

* Built in Automatic Battery Protection System Internal

The intelligent,electric Battery Management System(BMS) protects lithium-ion batteries from extrem temperatures,overcharging,and excessive discharge,short circuit protection,balance voltage each cell.

* Automatic Over Voltage Protection : 58.4V 

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. Green environmental protection, regardless of production, use and scrap, does not contain or produce any toxic and harmful heavy metal elements and substances.
4. Built-in BMS will prevent battery pack over charge, over discharge, over-current, over-heat, short circuit . 
5. The self-discharge rate is very low, which is one of the most outstanding advantages of the battery. Generally, it can be less than 1%/month, less than 1/20 of the Ni-MH battery.

How to install

1. The thick wires (red represent "+",black represent "-") from battery link with the Anderson connectors for discahrge.
2. The thin wires (red represent "+",black represent"-") from battery link with the three-hole connector for charger.
3. The Discharge and charge cannot be performed at the same time.

Package List:

• 1 x Battery Pack
• 1 x Charger
• 2 x  Anderson plug
• 1 x Three-hole plug
• 1 x Operating instruction

1. Standard lithium battery charger must be used.
2. Prohibit large current discharge.
3. Please carefully check the battery fit range and size before buying to avoid unnecessary returns.

1. It is recommended to charge up the battery to 80% if you are going to store it for a period;
2. Make sure the battery will be charged at least once every 3 months to ensure the best performance and cycle life;
3. The battery should be stored in a dry environment, keep away from fire and heat sources;
4. Avoid direct connection of positive and negative poles
5. If you have any questions about our products, welcome to contact us.

Shipping:

• Send by Fedex from USA within 3-5 Days Working days Fast Shipping.
• Shipping cost is free for USA.

Warranty Terms:

1. Our batteries provide 30 days free return or replacement and one-year warranty service.