Name: Factory Direct Hailong G80 48V 21Ah Li-ion Battery for E-bikes
Brand: Topwell Power - Professional Lithium Battery Manufacturer
SKU: TWE0508
Availability: InStock
Rating: 5 (1 reviews)

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Factory Direct Hailong G80 48V 21Ah Li-ion Battery for E-bikes

Description Brand Introduction Review

Description

Product Specifications

Item	Specifications	Remark
Model No.	HL-G80-48V21Ah
Nominal Voltage	48V	36V Customized
Nominal Capacity	21Ah	7.8Ah/10.4Ah/13Ah/15.6Ah/17.4Ah/19.2Ah/19.8Ah/21Ah/25Ah Customized
Dimensions	36890127mm
Weight (approx.)	4.86kg
Cycle Life	≥1000 times	80% DOD
Charge Voltage	54.6V
Discharge Cut-off Voltage	35.75V
Max Charge Current	5A
Max Continuous Discharge Current	20A
Operating Temperature	Charge: 0℃ ~ 45℃
Operating Temperature	Discharge: -20℃ ~ 60℃
Storage Temperature	-10℃ ~ 40℃
Charging Port	XLR
Discharging Port	4-Pin	Upgradable to 5-pin/6-pin Gold-Plated Round Pin
BMS Function	Over-charge protection, over-discharge protection, over-current protection, over temperature, balancing, cooling.
Case Type	Hailong
Case Material	ABS+PC

Product Showcase

Product Features


Low self discharge	High cycle and service life	High performance lithium battery	Easy installation

Excellent high temperature performance	High energy density and conversion efficiency	Advanced BMS	Safe lock design
	High energy density and conversion efficiency

Quality Assurance

(1) Brand new A-grade domestic or imported cells
* Stable material composition greatly reduces the safety risks of the battery pack
* Good battery consistency greatly improves the overall life of the battery pack
* With safety explosion-proof valve
* High cycle life of more than 1,000 times

(2) Safe and secure internal battery assembly
* Using fixed brackets for enhanced safety and stability.
* Spot-welded with formed pure nickel strips, offering lower resistance, higher efficiency, rust resistance, and longer lifespan.

(3) Strict Cell Matching

Cells are paired based on capacity, voltage, and internal resistance. Strict testing ensures optimal stability, performance, and lifespan.

Applications


Electric Bicycle	Electric Mountain Bike

Wheelchair Tractor	Electric ATV

Precautions

1. No Memory Effect: Lithium batteries do not have a memory effect, but it is recommended to fully charge new batteries before use. Cycling the battery a few times will improve performance.
2. Avoid Deep Discharge: Recharge the battery when it reaches about 10% to avoid deep discharge, which can damage the battery's lifespan.
3. Timely Recharging: Avoid storing the battery under low voltage after use. Please recharge it promptly.
4. Long-Term Storage Requirements: If the battery will not be used for a long time, first disconnect it from the device, then charge each cell to about 3.8V for storage. Check the voltage every 3-6 months, and if it drops below 3V per cell, recharge it in time.
5. Proper Charging Method: First, connect the charger to the battery pack, then plug the charger into the AC power supply. Charge according to the manufacturer's recommended parameters.
6. Waterproof, Moisture-Proof, and Shockproof: Ensure the battery pack is protected against water, moisture, and shocks.
7. Do Not Disassemble: It is strictly forbidden to impact, squeeze, or privately disassemble the battery pack.
8. Transportation Requirements: Do not transport the battery pack with a full charge over long distances.

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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