Shenzhen Herculesi Technology Co., Ltd.

Product Parameters
Our Main Products: Custom Lithium Ion Battery Pack; Electric Bike Battery; Storage System Battery; Polymer Battery

Battery specification:

Battery Model:48V 20Ah
Nominal Capacity (AH) :20AH
Nominal Voltage (V): 48V
Cell Source Resistance (mΩ) :Less 40
Cell Specification :3.7V 2.2AH 18650 cell(3C Discharge rate)
Cell OverCharge Protection Voltage:4.2V/Cell
Cell Overdischarge Protection Voltage:2.75V/cell
Discharge Cutoff Voltage (V) :40 +/- 1V
Charge Cutoff Voltage (V) :54.6V
Rated Discharge Current (A): 30A
Maximum peak discharge current (A): 90A
Maximum Continuous Discharge Current (A) :30A
Charger mode:CC/CV(Constant Current Constant Voltage)
Standard Charge Current (A) :2A
Charge Time under Standard Charge Current :10h

Maximum continuous Charge Current (A):5A

Charge Time under Fast Charge Current:4h
Charge Temperature Range :0-45°C
Discharge Temperature Range:-20-65°C
Life cycle:more than 800 cycles
Battery Size :260*180*70MM
Battery Weight: About 5.5kgs

Product features —— Why the li-ion battery is the best solution for an e-scooter 

Advantages of li-ion battery over lead-acid battery 

Shorter charging time 

A lead-acid battery requires 8-9 hours of charging time , but a li-ion baattery is 90% charged in two hours an takes only three hours to be fully charged .

No need to replace the battery 

The capacity of lead-acid batteries is about 50% of the initial capacity after 1.5 year of use (about 400 cycles ) ,but that of li-ion batteries is about 75% of the initial capacity after 3 years of use (about 800 cycles) .

As the minimum required life for an E-scooter is thrss years ,existing lead-acid batteries require a battery change while li-ion batteries do not 

More environmentally friendly 

Lead-acid batteries carry the rich of lead contamination during the manufacturing process and even after their disposal .In contrast ,li-ion batteries do not contain environmentally harmful material and are environment friendly 

Advantages of li-ion baattery -operated scooters over engine-type scooters

Save maintenance cost 

Improve convenience of maintenance

Rid eco-friendly 

For more information ,please contact us 

What Do We Do
Herculesi BATTERY committed to offer the best custom lithium battery and electric bike battery solutions.

Our service 

1. We have 10 years experience in Battery field

2. Fast service to customers within 24 hours

3. A professional Engineering Team to offer Best Solution to you

4. Genuine Battery Capacity, no Fake

5. 100% QC Inspection before Delivery

6. Business Partners from all over the World

7. Rich Experience in Battery Field

8. 13 months warranty ,after-sales

Strict quality control 

As usual, we produced a batch of cells, and need do below test firstly.

a) capacity test, b) high current discharge test, c) low temperature test, d) cycle performance test, e) short circuit test, f) overcharge test, g) crush test, h) impact test, i) vibration test, j) hot test.

After the cell is passed test, we will build the pack as below procedure.

a) inner resistance test, b) capacity grading, c) cells welding, d) cells combination, e) welding BMS & cable, f) high & low temperature test, g) charging & discharge test, 10times cycle. h) packing, i) drop test, j) delivery.

Our factory

We are specialized in Li ion battery, LiFePO4, Li-NiCoMn, LiCoO2, LiNiO2, and LiMn2O4 battery with 12 year experience.

We are not only sell batteries, but also provide expertise to help customer design their own custom batteries. Our sales and engineers have more than 10 years experience, if you have any design or inquiry, please just message us, our engineers will work with you to provide you best solutions.

 Warnings:
Do not immerse the battery in water or seawater, and keep the battery in a cool dry surrounding if it stands by.
Do not use or leave the battery near a heat source as fire or heater
Use the battery charger specifically for that purpose when recharging.
Do not reverse the position and negative terminals.
Do not connect the battery electrodes to an electrical outlet.
Do not discard the battery in fire or a heater.
Do not short-circuit the battery by directly connecting the positive and negative terminals with metal objects.
Do not transport or store the battery together with metal objects such as hairpins, necklaces, etc.
Do not strike, trample or throw the battery.
Do not directly solder the battery and pierce the battery with a nail or other sharp objects.

All batteries will be produced upon order confirmed, they will be sent out within 7 days after the payment verification. Shipping Time depends on destination and other factors.

Free Shipping and Free Customs Taxes to USA, UK, EU countries, Australia, Thailand, Dubai....

We are not responsible for any customs tax if occurs, but we will declare a reasonable low value to help buyer reduce it.

Q: What productions do you make ?
A: The main productus are 18650 battery pack, e-bike battery, lifepo4 storage battery, polymer battery, or any customized battery projects.

Q: How about your company intelligence?
A: ISO9001 certification, China Hi-tech company, MSDS, UN38.3, IEC62133, UL1642 etc certificated.

Q: How about the quality guarantee period?
A: Quality guarantee 1-2 years varies from different series.