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GP4-12 valve regulated lead acid 12v 4ah battery for alarm system

Lead Acid Battery | 12V 4AH | 20 Hour Rate | Dimension: 90x70x101x107mm

SKU: GP4-12 Category:

GP4-12 valve regulated lead acid 12v 4ah battery  is widely used even when surge current is not important and other designs could provide higher energy densities.

The grid structure of the lead acid battery is made from a lead alloy. Pure lead is too soft and would not support itself, so small quantities of other metals are added to get the mechanical strength and improve electrical properties. The most common additives are antimony, calcium, tin and selenium.

lead acid battery

12v 4ah Battery Benefits

  • Inexpensive and simple to manufacture.
  • Mature, reliable and well-understood technology – when used correctly, lead-acid is durable and provides dependable service.
  • The self-discharge is among the lowest of rechargeable battery systems.
  • Capable of high discharge rates.
  • Sealed Maintenance-free
  • ABS Containers (UL94HB or UL94V0)
  • High-quality AGM separator

Battery Applications

  • UPS & EPS
  • Lighting equipment
  • Fire alarms and security systems
  • Communications and electric equipment
  • Portable VTR/TV, tape recorders, radios, etc.
  • Various power toys and recreational equipment
  • Emergency power supplies in power generation plants and substations
  • Golf Cart

TECHNICAL SPECIFICATIONS

Nominal Voltage 12V
 Nominal Capacity (20 hour rate) 4.0Ah
Capacity

25℃(77°F)

 10 hour rate (0.38A) 3.8Ah
5 hour rate (0.71A) 3.55Ah
1 hour rate (2.64A) 2.64Ah
Internal Resistance Full Charged Battery 25℃ ≤34mΩ
Capacity affected by Temperature

(10 hour )

 40℃ (104°F) 102%
25℃ (77°F) 100%
0℃ (32°F) 85%
-15℃ (5°F) 65%
Self-Discharge

25℃(77°F) Capacity

 after 3 month storage 90%
after 6 month storage 80%
after 12 month storage 62%
Charge (Constant Voltage) 25℃(77°F) Float Initial Charging Current Less than 1.2A

Voltage 13..6-13.8V
Cycle Initial Charging Current Less than 1.2A

Voltage 14.4-15.0V

DIMENSIONS & WEIGHT

Battery Dimensions Length 90mm
Width 70mm
Height 101mm
Total Height 107mm
Box Dimensions Length 389mm
Width 200mm
Height 147mm
Quantity Per Box 10 pcs per box
Net weight Per Cell 1.31 kg±50g
Net weight Per Box 13.1kg
Gross Weight 13.5kg

Discharge Constant Current per Cell (Amperes at 77°F25°C)

F.V/Time 5min 10min 15min 30min 45min 1h 2h 3h 5h 8h 10h 20h
16.50 13.20 8.80 6.62 4.40 3.08 2.64 1.65 1.13 0.75 0.51 0.42 0.22
16.20 12.96 8.64 6.50 4.32 3.02 2.59 1.62 1.11 0.74 0.50 0.41 0.22
15.90 12.72 8.48 6.38 4.24 2.97 2.54 1.59 1.09 0.73 0.49 0.40 0.21
15.60 12.48 8.32 6.26 4.16 2.91 2.50 1.56 1.07 0.71 0.48 0.40 0.21
15.00 12.00 8.00 6.02 4.00 2.80 2.40 1.50 1.03 0.69 0.46 0.38 0.20

Discharge Constant Power per Cell (Watts at 77°F 25°C)

F.V/Time 5min 10min 15min 30min 45min 1h 2h 3h 5h 8h 10h 20h
1.60V 25.41 16.94 12.75 8.47 5.93 5.08 3.18 2.18 1.45 0.98 0.81 0.42
1.65V 24.95 16.63 12.51 8.32 5.82 4.99 3.12 2.14 1.42 0.96 0.79 0.42
1.70V 24.49 16.32 12.28 8.16 5.71 4.90 3.06 2.10 1.40 0.94 0.78 0.41
1.75V 24.02 16.02 12.05 8.01 5.61 4.80 3.00 2.06 1.37 0.92 0.76 0.40
1.80V 23.10 15.40 11.59 7.70 5.39 4.62 2.89 1.98 1.32 0.89 0.73 0.39

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