Capacity at 270C when discharged at C20 up to 1.75 vpc (1.280 sp. gr)
Dimension (+/-3mm)
Weight
(Kg +/-5%)
Volume of Electrolyte
(1.220 Sp. Gr) Liters
Initial charge Minimum AH input (AH)
Initial Charge of Constant Current (A)
Constant Potential Limiting Current (Amps)
Trickle Charge
(Current in mA)
Length
Width
Height*
Dry
Filied
Start (upto 2.36 vpc)
Finish (upto 2.75 vpc)
Min.
Max.
IT 400
110 Ah
506
220
257
29.10
43.35
11.40
450
12
6
25
100
400
IT 500
150 Ah
500
187
430
33.80
60.05
23.80
540
14.4
7.2
30
120
480
IT 550
165 Ah
500
187
430
35.80
60.80
20.00
610
16
8
34
135
540
IT 650
200 Ah
500
187
430
45.00
72.00
21.60
720
19.2
9.6
40
160
640
*At 270C when discharge at C20 upto 1.75 vpc
Higher Discharge Rates (Optional)
Hours
10
5
3
1
Capacity Ah
IT400
100
83
72
50
IT500
120
100
86
60
IT550
135
112
97
68
IT650
160
133
115
88
Initial Charging Instructions
Filling in Specific Gravity : 1.220 +/ – 0.005 at 27º C
Rest Period : 10-12 hrs
Minimum Ah input : 450 Ah for IT400, 540 Ah for IT500, 610 Ah for IT550 and 720 Ah for IT 650
In order to reduce the charging time, the following routine may be adopted. For IT400, the initial charging current may be 12A upto 2.36vpc followed By 6A upto 2.75 vpc. For IT500, the initial charging current may be 14.4A upto 2.36vpc followed By 7.2A upto 2.75 vpc. For IT550, the initial charging current may be 16A upto 2.36vpc followed By 8A upto 2.75 vpc. For IT 650 , the initial charging current may be 19.2A Up to 2.36vpc followed by 9.6A upto 2.75vpc.However in both cases, minimum Ah to be given. Under the circumstances, Battery temperature should not exceed 50ºC. In case the temperature exceeds 50ºC Adequate rest to be given till the electrolyte temp. comes to ambient temp. and charging to be continued.
Conditions of fully charged
3 consecutive hourly readings of specific gravity and voltage become constant
Top of charge voltage will e around 16.2V – 16.5V.
All cells should gas freely
Minimum Ah has been given.
Specified gravity of fully charged condition : 1.250 +/ – 0.005 at 27º
Normal Recharging Instruction
Recharging through Inverter at constant potential mode of 14.4V with limited current as specified. After battery potential matches 14.4V, the battery should continue in trickle charge made at constant potential of 13.8V.
Statutory Notice
All batteries contain lead, which is harmful for humans and environment. As per statutory requirements, the used battery must be returned to the authorized dealer, manufacturer or at the designated collection centres.
