Customized Size super li-ion battery 12v 40ah li-ion battery

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1,Specifications for 12v 40ah li-ion battery

Product name

Customized Size super li-ion battery 12v 40ah li-ion battery

Type Rechargeable battery

18650 Battery

Protection BMS Protection
Cycle life over 500 cycles 70% DOD
Discharge rate 3C
OEM/ODM Support
Warranty Time 1 year
Shipping Safety special line for battery
Payment Terms T.T. Paypal. Union Westen
key words

Customized Size super li-ion battery 12v 40ah li-ion battery

 PCM reliable protection  Over charge protection
 Over discharge protection
 Short circuit protection
 Can be customized
 Operating environment Parallel (P)  Charging, 0°C ~ 45°C , 65±20%RH
 Discharging, 0°C~60°C , 65±20%RH
 Storage environment  -40°C~50°C, 65±20%RH
 storage for a long time(>3 months) and

the storage condition shall be:<35°C , 65±20%RH

 Cycle Life (80% Prime Capacity)  ≥500 times
 Adavantages  Orginal import

 High energy density

 Safety and reliable(with BMS)

 Long cycle life

 No memory

 Never explosion,stable performance,environment friendly

 Capacity and size could be customized

Pictures for li-ion battery 12v 40ah li-ion battery

The Feature of  li-ion battery 12v 40ah li-ion battery

1. Extremely safe and stable chemistry.
2. Long life-cycle: up to 500 times Max recycles.
3. Lighter weight: 1/3 of Lead acid battery weight.
4. Low self-discharge rate, less than 3% monthly.
5. No memory effects and highly efficient charge.
6. Environment friendly and fuel-saving.
7. Battery pack with ABS case, waterproof
8. Can be assembled to different battery packs

Professional quality testing each battery

Shipping Ways:


  1. by UPS/DHL/FEDEX( It takes 3-5 days to arrive after all details confirmed)
  2.  by air cargo( It takes about one week to arrive after all details confirmed)
  3. B y sea shipment ( It takes about one month to arrive after received the deposit and confirmed all details )
  4. Port:FOB Hongkong or CIF terms.
  5. Shipment date within 30 days after confirmed all information and received the deposit.
  6. payment terms:TT /LC

4,Lithium Battery Advantages:

1.Long life cycle, large capacity and good shock resistance
2.Low self-discharge and good discharge performance at low temperature
3.Strong charging acceptance and quick-charging capability
4.Strong over-discharge resistance and charge retention
5.Maintenance-free and no acid or water for maintenance in usage
6.Excellent large current discharge performance, and have obvious advantages in startup and climbing
7. High temperature performance
8. Environmental friendly
9. Lighter weight smaller size
10.Most safe no explosion no fire

5,What is QSPOWER Factory?

QSPOWER(zhuhai) Co.,LTD was founded on 2018 belonging to Qiangsheng Goup(UK) Co.,Ltd which focus on green energy products production since 2012.

QSPOWER have the strong technique support group which have the well-known expert form America and Taiwan. QSPOWER has extensive experience with every facet of the design and manufacturing process of batteries.

QSPOWER are focus on Green energy solution, such as lithium battery technique R&D, battery testing, battery cell supplying chain, battery packing and customized green energy solution project.

QSPOWER has the experience and resources to help design engineers ensure a smooth design process and project management meet delivery schedules. We are willing to invest together for potential good project and business partner. New developing requirements are welcome always.

Here are some general categories of markets we are in.

Vehicle battery

Energy Storage

Power bank

Power tool battery

Portable Medical battery

Customized batteries

6,FAQ for our battery companies ?

1,Q: What’s the main product in QS?

A: Rechargeable battery. Li-ion, Lipo battery and power battery pack.

2,Q: What is overcharge?

A: After charge, tested the batteries’ initial state and capacity. Charge to 10.0V at 3C current, then charge to 0.01C at CV mode. Observe changes in battery appearance.

3,Q: What is over discharge?

A: After charge, test the batteries’ initial state. When the batteries are normal, discharge to 0V at 0.5C. Observe changes in battery appearance

4,Q: Can I have a sample order?

A: Yes, we accept sample order to test and check quality. Batteries can be made as require.

5,Q: Do you have MOQ limit?

A: Yes, we have MOQ limit for mass production, but it depends on battery model. Please contact us for details.

6,Q: How about the lead time?

A: Samples will takes 5-7 business days. Mass production will takes 15-25 days. It depends on quantity.

7,Q: How about shipping and delivery time?

A: Generally, battery will be shipped via Express, such as DHL, TNT, FedEx and UPS, delivery time is 3-5 business days. Or DDP service, delivery time is 11-15 business days. Airline and sea shipping also available.

8,Q: What about after-sale service?

A: We will offer you 1 year guarantee. If there are any problems, please inform us, we will offer you positive solutions.

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