Non-toxic Waterproof 12V Lithium Battery Pack 21Ah for Off-Grid Solar System

Feature: 1. High charging & storage efficiency 2. Lighter weight, with the best power-to-weight ratio 3. Longer life, more than 2000 cycles 4. No memory effects 5. Low self-discharge rate, less than 3% monthly 6. Environment friendly, Non-toxic, non-contaminating and no rare metal...

Product Details

Non-toxic Waterproof 12V Lithium Battery Pack 21Ah for Off-Grid Solar System


Specification:


No.

Item

General Parameter

Remark

1

Rated Capacity

21Ah

Standard discharge(0.2 C5)after standard charge(0.2 C5)

2

Minimal Rated
Capacity

19.6Ah

3

Nominal Voltage

12.8V

 

4

Cycle Life

Higher than 60% of the Initial Capacity of the Cells

◆Charge: CC@0.2C to 14.6V, then CV till current to 0.05C
◆Rest: 30min.
◆Discharge: 0.2C to 10.0V
◆Temperature:20±5℃
◆Carry out 2000cycles

5

Discharge cut-off voltage

10.0V

10.0V( recommended)

6

Charging cut-off voltage

14.8V

14.6V (recommended)

7

Cell and assembly method

 

 

IFR18650EC 1.5AH

4S14P

8

Housing material

ABS+PC housing

 

9

Standard charge

0.2C constant current(CC) charge to 14.6V,then constant voltage (CC)14.6V charge till charge current decline to    ≤0.05C

Charge time : Approx 7h

10

Standard discharge

Constant current 0.2C
Cut-off voltage 10.0V

 

11

Maximum Charge Current

1C

(0.2C Recommended)

12

Continuous  Discharge Current

1C

 

Peack  Discharge Current

5C

 

13

Operation Temperature Range

Charge: 0~45℃

60±25%R.H.

Discharge:-10~60℃

14

Storage Temperature Range

Less than 1 year : 0~25℃

60±25%R.H.
at the shipment state

Less than 3 months:-5~35℃

15

Weight

Approx:2.9Kg

 

16

Max.Dimension

Height:132mm

132mm*77mm*140mm

Width:77mm

Length:140mm



SUNLAND is one of the leading manufacturers and suppliers of non-toxic waterproof 12v lithium battery pack 21ah for off-grid solar system in China. Under strict quality control system, our quality energy storage products made in our own professional factory must be your best choice.

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