Deep Cycle Li-Ion Battery Pack 72V 20Ah 30Ah 40Ah

Item No.: TWE0561
Model: 72V40Ah
Battery Type: LiFePO4
Nominal Voltage: 73.6V
Nominal Capacity: 40Ah
Dimensions: 420x230x170mm (max)
Perfect for low-speed vehicles
Description Brand Introduction Review
Description

Product Features

  • High Performance: 73.6V, 40Ah capacity for extended range and power stability.
  • Long Life: Up to 2,000 cycles with durable LiFePO4 technology.
  • Advanced Safety: Integrated BMS for overcharge, over-discharge, over current, over voltage, over temperature, and short-circuit protection.
  • Lightweight Design: Compact and easy to install, optimizing vehicle efficiency.
  • Eco-Friendly: Non-toxic and low-maintenance for sustainable use.


Product Specifications

Item Specifications Remark
Model No. 72V40Ah LiFePO4 Batery
Nominal Voltage 73.6V
Nominal Capacity 40Ah 20Ah/30Ah/Customized
Dimensions 400x230x170mm Customized
Weight 21kg
Cycle Life ≥2000 times
80% of the initial capacity
Charge Voltage 83.95V
Discharge Cut-off Voltage 57.5V
Max Charge Current 20A
Max Continuous Discharge Current 40A
Peak Discharge Current 100A
Operating Temperature Charge: 0℃ ~ 45℃
Discharge: -20℃ ~ 60℃
Storage Temperature -10℃ ~ 40℃
 
Charging Port Customized  
Discharging Port Customized  
Case Material Stainless steel / Sheet metal
Applicable Motor ≤2000W


Product Showase

 


Applications

Electric motorcycle, Electric bicycle, Electric scooter, Electric tricycle, Electric forklift, Low-Speed Four-Wheeled Electric Vehicle, Golf cart, Tourist sightseeing vehicle, Smart battery swapping cabinet, AGV (Automated Guided Vehicle), AMR (Autonomous Mobile Robot), etc.
Electric Motorcycle Electric Tricycle Golf Cart
Electric Forklift Smart Battery Swappinig Cabinet AGV


Our Advantages

01 Use new Grade A cells from top brands (CATL, EVE, Gotion, etc.), ensuring high quality, no defects, and excellent durability













02 High-current BMS with active balancing function

03 Good craftsmanship ensures battery safety
     
*Install epoxy board, flame retardant and heat insulation      *High-power laser welding, more solid                           *High-precision soldering, more reliable battery
      
*BMS active balancing protection board                          *Large overcurrent pure copper wire interface                            *Insulation packaging protection
      
*Glue sealing IP68 waterproof                        *Multi-directional buffer shock absorption                                                *Thickened metal shell
04 Strict quality inspection
Comprehensive peformance test for the semi-finishedbattery: battery activation test, open circuit voltage test, AC internal resistance test, dishcarging & charging test. Aging test for the finished battery pack: sitimulate real usage with continuous charge-discharge cycles to assess life and
performance.
Battery vehicle load test: each battery undergoes loeading, stability, and power testing before packaging and shipping.

 

How to Customize Your Battery? 

1. Measure the battery compartment dimensions 2. Check the controller's voltage & current, rated power of the motor
3. Assess the capacity you need
3. Confirm the charge & discharge interface type and form you need


Brand Introduction

Yichun Topwell Power Co., Ltd (Trademark:TWE) established in 2002, is a high-tech enterprise focusing on the R&D, production and sales of lithium polymer batteries, lithium ion batteries, lithium iron phosphate batteries, and lithium thionyl chloride batteries. Products are widely used in consumer electronics, Internet of Things, smart home, medical, vehicle, home and outdoor energy storage, and have obtained CE, RoHS, Reach, UN38.3, IEC62133, CB, UL, MSDS certifications, etc.

 

Topwell moves on by providing reliable, efficient and intelligent battery solutions to meet different energy needs. We have efficient engineering, production and quality management teams. From raw material procurement, to production, testing, sales and after-sales service, all steps have been controlled by a strict quality management system. Our factory has passed ISO9001, IS014001, BISI certification, SGS, Intertek audit. With the advantages in price, quality and service, we have established long-term and stable cooperative relationships with many well-known brands. Topwell always attached the great importance to the long term cooperation with customers. No matter the order is big or small, we do our best to support you the highest quality with favorable price. We believe that Topwell Power can be your best battery supplier!

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