48v 20ah lifepo4 electric bicycle battery pack

48v 20ah lifepo4 electric bicycle battery pack


High capacity LiFePO4 Battery Pack 48V 20Ah for electric bike

Using LiFePO4 battery instead of Lead acid battery is inevitable trend


LiFePO4 is the safest battery in the world till now , which does not burning with over 30v discharge voltage and it does not explore when you puncture the battery . we have achieved CE and UL certifications.


48V 20Ah lifepo4 electric battery pack

1.Key Specification


*Long lifespan,6 to 8 years,belong to second battery;

*Good performance,High discharge 48V series lithium battery;

*We offers battery pack and BMS and charge as whole solution;

*Safe,high-power and eco-friendly,have no heavy metal and corrosive fluid;

*Used widely in vehicle tool,e-tool, UPS, solar/wind system, energy storage;

*All products have passed strictly test,obtained ISO 9001:2000, CE, RoHS and UL certifications;

*Batteries can also accept large charging current as energy regeneration by EV braking or reducing speed;

* Engineers would adjust BMS and charger as a whole system, customers just need to enjoy the convenience of usage.


48V 20Ah lifePO4 electric bicycle battery pack

2.The Battery Pack Specifications


No Item Data
1 Battery Model 48V 20Ah
2 Cells and connection 32650, 3.2V 5Ah, 16S 4P
3 Battery Voltage 48V (58.4V)
4 Battery Capacity 20Ah (5.2Ah)
5 Charge Current 4A
6 BMS Model 16S, 20A.
7 Continuous Discharge Current 20A
8 Max Continuous Discharge Current 50A
9 Peak Discharge Current 50A
10 Battery Size 300*300*88mm
11 Weight 10kg

Samsung INR18650-29E 2900mAh 3.7V Li-ion Rechargeable Flashlight Battery

Samsung INR18650-29E 2900mAh 3.7V Li-ion Rechargeable Flashlight Battery

Nominal Specifications:

Nominal Capacity 2,850mAh (0.2C, 2.50V discharge)
Minimum Capacity 2,750mAh (0.2C, 2.50V discharge)
Charging Voltage 4.20 ± 0.05 V
Nominal Voltage 3.65V (0.2C discharge)
Charging Method CC-CV
(constant voltage with limited current)
Charging Current Standard charge: 1,375mA
Charging Time Standard charge: 3hours
Max. Charge Current 2750mA (not for cyclelife)
Max. Discharge Current 2,750mAh (continuous discharge)
8250mAh (not for continuous discharge)
Discharge Cut-off Voltage 2.50V
Cell Weight (max. (g)) 48g
Cell Dimension Diameter(max.) : 18.40 mm
Height(max) : 65.02 mm
Operating Temperature Charge: 0 to 45°C
Discharge: -20 to 60°C
Storage Temperature 1 year : -20~25°C (1*)
3 months : -20~45°C (1*)
1 month : -20~60°C (1*)

Major Application:
1) Portable equipment: Laptop, camcorder, PDA, digital camera, portable DVD etc.
2) Military equipment: IR telescope
3) Medical devices
4) Power tools


  • High Capacity and Stable Discharge Voltage
  • Light weight, small size and high performance
  • Small internal resistance
  • Outstanding Discharge properties and Storage Capacity
  • Pollution free, long cycle life
  • No memory effect
  • Existing stock for short delivery time.
  • Factory price, high quality

Quality Guarantee:
Power-Wholesale Website is committed to providing you with authentic 18650 lithium-ion batteries. Every battery sold was tested strcitly and of the highest quality.

  • We only sell authentic Li-Ion batteries.
  • The authentic 18650 batteries are well inspected.

Cell Phone Batteries Nimh Battery Packs AAA800mAh 4.8V

Cell Phone Batteries Nimh Battery Packs AAA800mAh 4.8V


Quick Detail:

  1. To have 80% capacity after 500 charge/discharge cycles in product
  2. NiMH Batteries AAA Size 800mAh 4.8V
  3. Nominal cell dimensions : 10.2*43mm Diameter*Height
  4. Excellent over discharge function
  5. Environmental friendly,Free maintenance
  6. Long Cycle life: up to 500-1000 cycles


Description :

Lower internal resistance

Ultra high capacity

Excellent safety performance,Qality Certificate:SGS,UL,REACH ,CE
Cost Effective with high quality design to fit with Walkie Talkie

High rate charging and discharging


Walkie Talkie ,Phone , Cordless Phone ,Cell Phone , external Phone , Phone Accessories



MP-NiMH 4.8V 800mAh battery specification
Model MPH-AAA 800mAh 4.8V Flat cap
Dimension 10.2*43mm (Diameter*Height)
Voltage 4.8V
Capacity 800mAh
Internal resistance <20milliohm
Discharge cut-off voltage 1.0V
Maximum Charge voltage 1.4V
Standard charge current 0.1C for 16 hours
Standard discharge current 0.2C
Approx Weight 21g
Working temperature Charge:0-45 Celcius degree
Discharge:-20-50 Celcius degree
Storage temperature minus 20 – 45 Celcius degree
Normal temperature capacity 800mAh
Cycle life 500 cycles

NiMh&NiCd Batteries For Walkie Talkie


Size Nominal Capacity (mAh) Nominal Voltage (V) W(mm) L(mm) Hgt.(mm) Weight(g)
AA 1600 2.4 14.5 28 48.5 52
2/3AA 700 2.4 14.5 28 29.5 34
AAA 700 2.4 10.5 20.5 43.5 26
5/4AAA 800 3.6 52 46 9 39.6
2/3AA 650 3.6 29 27 29.5 45
2/3AA 650 3.6 28 26.5 29.5 45
AA 1600 3.6 14.5 42 48.7 78
AAA 700 3.6 10.5 30.7 43.5 39
AAA 600 3.6 10.5 30.7 43.5 33
2/3AAA 300 3.6 10.5 30.5 29.5 24.6
AA 1600 4.8 14.5 56 48.7 104

Emergency Car Battery Jump Starter / Lithium Battery External Power Bank

Car Battery Jump Starter for car emergancy 15000 mAh 





Output 19V/3.5V, 5V/2A, 5V/1A, 12V jump start
Input 14V/1A
Starting Current 250A
Peak Current 500A
Voltage DC 12V
Battery Capacity 15000 mAh 55.5wh
Full Charging Time 4 hours
Operating Temperature -20℃ ~ 60℃
Weight 520 g
Size 265*190*60mm
Whole Set Weight 1.4 KG




1. 30 times for car jump start. Peak current can reach 500A

2. Reverse charging protection

3. Enduring extreme cold weather (-20°c)

4. Full charge iphone 7 times

5. Illumination 36 hours

6. Equipped with notebook connectors to power supply for different laptops

7. Power supply for car electric devices like car refrigerators

8. Warning flashing, SOS signal 40hours

9. Weight and size is only 1/10 of traditional jump starter.

10. More than 3 years life span (> 1000 cycles)




1. Powerful capability for jump start 12V vihicle

2. Supply power for laptops, mobile phones, tablet PC, MP3, MP4, PSP, cameras and other digital devices

3. Supply power for car electric devices, i.e. car refrigerators

4. Multi-functional LED light (light, burst flashing, SOS)

5. Smart Jumper Cable:

a. Reverse Polarity Protection: No short-circuit damage is possible even when the clamps are connected incorrectly between positive (+) and negative (-) terminals.

b. Reverse Charge Protection: No reverse charge back to our products after the vehicle starts.

c. Short-Circuit Protection: No short circuit occurs in the product when the two Clamps are connected.

d. Overload Protection: Stop the product from over discharging, protecting the battery when it reaches a low level.

e. Starting override: While the vehicle battery is completely dead or no battery is present, Push “BOOST” button to force- start the vehicle.


Ultra-Safe Battery
The lithium battery is protected by multiple levels of safety. Nothing happens if you touch the clamps together or hook up to a battery in reverse.
It’s safe to use because you cannot connect it in reverse. If you hook it up wrong, an alarm will sound, reminding you to switch the clamps to the correct polarity.



Lithium Ion Cylindrical Toy Battery 9V 220mAh Rechargeable

Lithium Ion Cylindrical Toy Battery 9V 220mAh Rechargeable


Quick details

Lithium Ion Cylindrical Battery




4,Electronic scale ,toy


Lithium ion (Li-ion) batteries feature high energy density, high capacity, light weight and high power.
The voltage of cylindrical type is 9V.Li-ion batteries are one o f the most popular types of rechargeable battery
for portable electronics, with one of the best energy densities, no memory effect, and a slow loss of charge when not in use.



◆Cellular phone

◆smoke alarm
◆Power tools

◆PDA’s and handy terminals
◆Communication devices

◆Electronic instrument



No. Item General Parameter Remark
1 Rated Capacity Typical 220mAh Standard discharge(0.2C5A) after Standard charge
Minimum 200mAh
2 Nominal Voltage 7.7V Mean Operation Voltage
3 Voltage at end of


6.0V Discharge Cut-off Voltage
4 Charging Voltage 8.4±0.1V  
5 Internal Impedance ≤300mΩ Internal resistance measured at AC 1KHZ after 50% charge

The measure must uses the new batteries that within one week after shipment and cycles less than 5 times

6 Standard charge Constant Current 0.2C5A

Constant Voltage 8.4V

0.01 C5A cut-off

7 Standard discharge Constant current 0.2C5A

end voltage 6.0V



No. Item General Parameter Remark
8 Fast charge Constant Current 1C5A

Constant Voltage 8.4V

0.01 C5A cut-off

9 Fast discharge Constant current 1.5 C5A

end voltage 6.0V

10 Maximum Continuous Charge Current 1 C5A  
11 Maximum Continuous Discharge Current 1C5A  
12 Operation Temperature Range Charge: 0~45℃ 60±25%R.H.

Bare Cell

Discharge: -20~60℃
13 Storage Temperature Range Less than 1 year: -20~25℃ 60±25%R.H.

at the shipment state

less than 3 months: -20~40℃
Less than 7 day : -20~65℃
14 Pack  Dimension L26.5(+0/-2)*W 17.5(+0/-2)

*H 48.5(+0/-2)mm

Initial  Dimension