Sealed Lead acid battery/4V4.5AH Rechargeable Battery /4V4.5AH Emergency light battery/4V4.5AH

COMPONENT

Positive plate

Negative plate

Container

Cover

Safety valve

Terminal

Separator

Electrolyte

RAW MATERIAL

Lead dioxide

Lead

ABS

ABS

Rubber

Copper

Fiberglass

Sulfuric acid

Application

Charging method

Charging 

Voltage

at 25°C

Temperature 

compensation 

coefficient of 

charging 

voltage

Max.charging 

current

Charging time

 25°C(h)

Temp

(°C)

100% 

discharge

50% 

discharge

For 

standby 

power 

source

Constant voltage &

Constant 

Current

Charging

(with current restriction)

4.50-4.60V

-6 mV/°C

1.35A

24

20

0~40

(32~

104°F)

For 

cycle 

service

4.86-5.00V

-10mV/°C

1.35A

16

10

F.V/Time

5min

10min

15min

30min

45min

1h

2h

3h

5h

8h

10h

20h

1.60V

15.8 

12.6 

9.00 

5.18 

3.69 

2.93 

1.58 

1.14 

0.77 

0.51 

0.42 

0.23 

1.65V

15.3 

12.2 

8.55 

5.09 

3.65 

2.90 

1.56 

1.13 

0.77 

0.51 

0.42 

0.23 

1.70V

14.4 

11.3 

8.10 

4.95 

3.60 

2.88 

1.55 

1.13 

0.77 

0.50 

0.42 

0.23 

1.75V

12.6 

9.45 

7.65 

4.68 

3.56 

2.84 

1.53 

1.11 

0.77 

0.50 

0.42 

0.23 

1.80V

11.3 

8.10 

7.20 

4.05 

3.51 

2.79 

1.49 

1.08 

0.76 

0.50 

0.41 

0.22 

1. Excellent safety performance: No electrolyte leakage, battery swelling and cracking under normal use.

2. Good discharging performance: With smooth discharging voltage and mild discharging platform.

3. Good shock-proof performance: The fully charged and completely fixed battery, with 4mm amplitude and 16.7HZ frequency do have a normal open circuit voltage without leakage, batteries swelling or cracking problem after one-hour vibration.

4. Good impact-proof performance: The fully charged battery is proved to maintian normal open circuit voltage and be without leakage or batteries swelling or cracking after droping three times from 20cm height naturally to a 1 cm-thick hardwood board.

5. Good resistance to overdischarge: In temperature of 25 degrees Celsius, the fully charged battery discharges with fixed resistance which is equivalent to the one required by 1 CA discharge of the battery for three weeks, and it can restore capacity over 75%.