1. Modified sine wave inverter with built in AC charger.
2. Connect batteries and operate it as UPS.
3. This unit will be a UPS unit.
4. Charger.
5. Transfer switch.
1. Soft start. 2. AVR design. 3. Input & output isolated. 4. Auto temperature control fan. 5. Reverse polarity protection. / by fuse. 6. Output short circuit protection. 7. Temperature protection: 50 +/- 5degrees. 8. Overload protection. 9. Input low voltage protection. 10. Input high voltage protection. 11. Low battery alarm. 12. Low battery shutdown.