| Technical data |
|
Rated Voltage: 24V
|
Application:
MI-2, 4, 6, 8, 14, 17, 24, 25, 28, 35
AN-12, 24, 26, 30, 32
YAK-50, 52
|
Battery Dimensions:
Overall Length: 481.5 ± 1.5 mm
Bottom Length: 474.5 ± 1 mm
Overall height: 200mm
Bottom Width: 170±1 mm
Top Width: 240±1 mm
|
|
Battery Weight: 28kg (max)
|
Capacity at 10A to an end voltage of 20V of 27±5°C :
25Ah at 2,5 hour rate
|
High rate discharge at 175A to an end voltage of 15.2V at 27±5°C:
5 minutes (minimum)
|
Engine Cranking Test 45 seconds cycles from 650A to 75A at 3 minutes interval between starts to an end voltage of 18 volts.:
5 cycles
|
Emergency loads:
52 amps discharge gives minimum 24 minutes
|
High rate discharge at -18°C:
A fully charged battery kept in the chamber for 16 hours discharge at 625 Amps for 10 seconds and 250 Amps for 50 seconds. Voltage during 250 Amps discharge - not less than 10 V
|
|
Cycle life: 400
|
|
Storage life: 2 years from the date of manufacture
|
|
Service life: 3 years from the date of commissioning
|
|
Warranty life: 12 months from the date of commissioning
|
Specifications to which approved:
DGAQA, Ministry of Defence Specification No: DGAQA/E & I/502/7 for MI-8/MI-17 aircraft and Specification DTD & P(AIR)/E & I/502 for Nickel Cadmium Batteries
|
Environmental tests at:
-18 ± 2°C for 16 hours
+ 55° ± 2°C for l6hours
|
Acceleration:
a) Normal condition:
+2g to-2g for one minute lateral and fore and aft axes.
+4.5g to -2g for one minute vertical axis.
b) Crash condition:
+9g to 9g for one minute lateral and fore and aft axes
+4g to -4.5g for one minute vertical axis. In addition 10g acceleration for one minute in all three directions
|
Tropical Exposure:
35± l°C at 95% RH for 12 hours
20± 5°C at 95% RH for 5 to 12 hours
No. of cycles 14
|
High Altitude:
20 km altitude at rate of 5 km and capacity performance / charge acceptance (CP charge) at that altitude complied.
|
Storage:
The battery shall be stored between +25°C and +35°C
|
