home alarm battery replacement 12v 4ah

PHYSICAL SPECIFICATION

Nominal Voltage
Nominal Capacity (20HR)

12V

4Ah

Dimension

Length
Width
Container Height
Total Height

90±1mm （3.54 inches)

70±1mm (2.76 inches)

101±1mm (3.98 inches)

106±1mm (4.17 inches)

Weight

Approx. 1.3 Kg ±3% (2.87lbs)

Standard Terminal

Fasten Tab No.187E（F1)

The Shimastu NP series AGM VRLA Batteries are premium quality batteries designed for general use. These batteries are valve-regulated lead acid batteries crafted using only the finest raw materials and Absorbed Glass Mat(AGM) separators, ensuring high performance and dependable standby service life. With such superb features, these batteries are an excellent choice for anyone looking for reliable and efficient power.
Features:
1.Non-spillable
2.Sealed and Maintenance-free Operation
3.High Quality and High Reliability
4.Less gassing,low Self-discharge
5.Low internal resistance
The design life of this product is considerably long, lasting up to 6 years in float service at a temperature of 25℃.
(77 0F )­

ELECTRICAL SPECIFICATION

Characteristics

Discharge curves @ 25℃ (77 °F)

Capacity

20 hour rate (0.2A)

10 hour rate (0.375A)

5 hour rate (0.68A)

3 hour rate (1.0A)

1 hour rate (2.2A)

4.0Ah

3.8Ah

3.4Ah

3.0Ah

2.2Ah

Capacity affected
by temperature

40℃ （104 ⁰F）

25℃ （77 ⁰F）

0℃ （32 ⁰F）

102%

100%

85%

Max Discharge Current

40A(5 Sec)

Short Circuit Current

210A

Internal Resistance

Full charged battery (25℃,77 ⁰F) 40mΩ

Constant Voltage
Charge

Cycle

Initial Charging Current less than 1.2A

Voltage 14.4~15.0V at 25℃ (77 ⁰F )

Temperature Coefficient –30mV/℃

Standby

No limit on Initial Charging Current

Voltage 13.5~13.8V at 25℃ (77 ⁰F )

Temperature Coefficient –20mV/℃