Presented by starvox electronics limited the portable battery charger is suitable for telecommunications industry. The total size of the units is 150 mm [w] x 300 mm [h] x 360 mm [d] and weight is 12 kg. Multi-turn potentiometers are supplied on front panel for setting the charging voltage from 48 to 56 v and charging current from 0 -25a. 3.5 digits dpm on the front panel provide constant display of voltage and current. It has a built in protection for output short circuit, over temperature and over voltage. Battery reverses connection protection provided. Over all efficiency is 85 percent . It is very suitable battery charger for charging the batteries at remote locations as transportation and handling is very easy and can be carried out by single person. Other voltage/current rating of battery chargers are also offered.