D3, D4, L1 – Ensure the battery UPS . Battery charging current limited by a halogen bulb up to 50W (max . 5A) . As time increases the current battery voltage is reduced to 0 when it reaches the maximum voltage of the battery .
D3, D4, L1 – Kuhakikisha UPS betri . Betri kumshutumu sasa mdogo na balbu halogen hadi 50W (max . 5A) . Kama wakati huongezeka sasa voltage betri ni kupunguzwa kwa 0 ilipo voltage upeo wa betri .