High quality lithium ion battery 48v20ah electric scooter battery solar system LED lighting medical equipment

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US $1-300 / Packs | 2 Pack/Packs (Min. Order)
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Overview
Quick Details
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Topband
Model Number:
TB-4820F
Nominal Capacity:
20AH
Type:
Li-Ion
Application:
Solar power system
Weight:
9.1KG
COLOR:
blue
green energy:
zero emission
Warranty:
2 years
Composed Type:
16series 1parallel
Components:
lithium iron phosphate
Size:
260*150*170mm
Voltage:
48V
Supply Ability
Supply Ability:
20000 Pack/Packs per Month
Packaging & Delivery
Packaging Details
soft PVC,Plastic case,Iron case
Port
FOB shenzhen
Product Description

 Detailed info of Topband lifepo4 battery 48V 20AH are as below:

   

 NO.

Items

 Characteristics

Testing Methods

1

Nominal Voltage

51.2V

Follow  GB/T18287-2013

2

 Nominal Capacity

20Ah

Follow   GB/T18287-2013

3

Minimum Capacity

19Ah

Follow  GB/T18287-2013

4

Battery internal Impedance

Internal Impedance120mΩ

 Internal Impedance Testing Machine(1kHz )

5

 Shipment Voltage

51.2~54.4V

Multi-meter

6

Dimension

 Length

MAX:  250*150*170mm

 Vernier caliper

Width

 Height

gross weight

9.1±0.2kg

electronic scale

7

Working Temperature

 Charge

0~45℃,45~85%RH

Temperature & Humidity Instruments

 Discharge

-20~55℃,45~85%RH

8

Storage Temperature & Humidity Range

Short: above one month

-20~+55℃,45~85%RH

Temperature & Humidity Instruments

Medium: above three months

0~+45℃,45~85%RH

Long:above one year

+5~+30℃,45~85%RH

9

Allowed maximum continuous charge current

6A

 Multi-meter

10

Allowed maximum continuous discharge current

20A

Pulse current  75A/3S

11

Allowed maximum reverse charge voltage

NO Allowed

/

12

Allowed maximum charge voltage

58.4±0.2V

 Multi-meter

13

Discharge cut-off voltage

37~45V

 Multi-meter

 

Dimension drawing

Compared with SLA battery,lifepo4 battery has many advantages:

1Long cycle life:up to 2000 times

1. Green: Non-Toxic, comfort to RoHS.

2. Long cycle life: > 2000 cycles, while Sealed Lead Acid batteries only 750 cycles and NiMh batteries only 500 cycles)

3. Safety

The safest battery in the world till now, which does not burn with 30V charge voltage and it does not explore when you puncture the battery. UL approved.

4. Light weight and smaller dimension

The dimension is smallest and the weight is lightest when compare with other battery. 1/3 weight of SLA, 65% weight of NIMH.

5. Great capacity and more powerful, rechargeable battery

High discharge current, 1C continuous, 3C pulse for normal cells and 20 C for special design

We can install many single cells in series and in parallel and it can fully discharge

6. Good thermal stability: - 40°C to 70°C

7. Back fast charge, good consistence, no memory effect, can equip battery charger.

Can be recharged anytime, no reduction of the capacity

7. Widely application, customize solutions, mass production, OEM/ODM/buyer label provided, factory passed TS 16949, ISO 9001:2008.

 

Our Services

  • We will reply your enquiry wihthin 24 hours.  

 • Design, research, customized energy solutions available

 • Provide trial production and mass production

 • Quick delivery: 2~3weeks for samples, 4~6weeks for mass production

 • One stop before sales servie & after sales service & technical support

 • Warranty: 2-year full service since shipping.

Company Information

 

Shenzhen Topband Co., Ltd. was registered in so called “China Silicon Valley”, Shenzhen Hi-tech Industrial Park in 1996, and got listed in Shenzhen Stock Exchange ( the stock code as 002139) in 2007.

After years of rapid development, now Topband takes lithium battery as the core technology and has become one of the  leading suppliers of lithium battery solutions in China, focusing on nano lithium iron phosphate/ LiFePO4 technology for  EV, RV/ caravan, marine, motorcycle, golf cart / trolly, UPS, solar storage, medical, floor scrubber, industrial, commercial use, etc.

 

If any interest, do not be hesitate to contact with us! Hope we could be your good partner!

Our company

 

Different Types of Power Battery Comparison

 

Lead Acid

NI-MH

Lithium ion battery anode materials

lithium manganate

Ternary Material

LiFePO4

Operating Voltage(V)

2

1.2

3.7

3.7

3.2

Specific Energy(Wh/Kg)

30-45

60-80

110-190

110-190

110-190

Energy Density(Wh/L)

70-80

150-200

250-500

250-500

250-500

Self-discharge

4-5%

30-35%

<5%

<5%

<5%

Cycle life(times)

400

500

500

800

2000

Safety

Good

Good

Better

Not as good as others

Good

Environmental protection 

Poor

Good

Good

Not as good as others

Good

Material cost

Low

High

Low

High

Low