Exide -Inva Red Battery - Initial Charging Instructions

Initial Charging Instructions
1. Filling in Specific Gravity 1.220 +/ - 0.005 at 27ºC 2. Rest Period 10 hrs 3. Minimum Ah input 315 Ah for INVARED300+, 396 Ah for INVARED350+, 531 Ah for INVARED 450+ & for INVARED500+ it is 563 Ah 4. In order to reduce the charging time, the following routine may be adopted. For IR300+, the initial charging current may be 8.4A upto 2.36 vpc followed by 4.2A upto 2.75 vpc. For IR350+, the initial charging current may be 10.6A upto 2.36 vpc followed by 5.3A upto 2.75 vpc. For IR450+, the initial charging current may be 14A upto 2.36 vpc, followed by 7A upto 2.75 vpc. For IR500+, the initial charging current may be 15A upto 2.36 vpc, followed by 7.5A upto 2.75 vpc. However, in both cases, minimum Ah input to be given. Under no circumstances, battery temperature should not exceed 500C. In case the temperature exceeds 500C adequate rest to be given till the electrolyte temp. comes to ambient temp. and charging to be continued. 5. 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. 6. Specified gravity of fully charged condition 1.250 +/ - 0.005 at 27ºC