Power Back-Up Systems

Dayliff Power Backup Systems are specifically designed for small domestic and commercial applications and provide standby power in the event of mains power supply failure. They can be used as an alternative to a generator and have many advantages including:-

  • Instantaneous and automatic changeover when the mains power fails which is especially beneficial when used with electronic equipment such as computers and TV's.
  • Totally silent and non polluting operation which particularly suits enclosed space applications.
  • Very low running costs - just the power to charge a battery.

During normal power conditions the inverter maintains the batteries at full charge while during a power failure the DC battery energy is seamlessly converted to AC power and fed to the supply circuits. Systems include two principal components, a DC/AC power inverter with built in battery charger and a battery bank.

Inverters are sourced from OPTI, a world leading manufacturer of inverter systems and feature large reliable transformers with precision Pure Sine Wave output and full function LCD status displays monitoring various operating parameters. Sizes are available from 800W to 11,000W output.

The endurance of a power backup system is determined by battery capacity, Dayliff systems being offered with a selection of capacities depending upon backup time required. Batteries supplied are of the deep-cycle long life type and the inverters provide automatic regulation to prevent over-charge and over-discharge. Systems are also provided complete with connecting cabling between the inverter and battery pack and expert selection advice is available to assist with sizing and installation.

The components of all Dayliff Backup Systems are carefully matched in terms of quality and performance and they provide a reliable, effective and economic solution to all small scale mains standby power requirements.

Dayliff Power Backup systems should be installed between the main electricty meter and the distribution board as indicated in the wiring diagram. It is important to separate the installed loads so the back up systems is not connected to high consumption appliances like cookers, water heaters, washing machines, pumps etc. This may require some re-wiring of the distribution board and it is recommended that a qualification electrician is consulted.

Note that the indicated backup times are approximate and based upon loads inidicated. They are entirely dependant upon the loads applied and will vary accordingly.


Opti Inverter / Charger Battery Bank Back-Up Time(hrs) Typical Application
Model Output Max AC Amps DC Voltage Stored Energy(WH) Configuration Home Office
Efecto SP 1000 1000W 3A 12V 2400 1X200AH 4 TV, VCR, Stereo 8 lights (Energy Saving) 2PCs, PABX, Fax, 6 lights(Energy Saving)
3600 2X150AH 6
Efecto SP 2000 2000W  7A


2400 2X100AH 2 TV, VCR, Stereo , Small Fridge, 8 lights 3PCs, PABX, Fax, 6 lights
4800 2X200AH 4
7200 4X150AH 6
Efecto SP 3000 3000W


3600 2X150AH 2 TV, VCR, Hifi, Fridge, 20 lights 5PCs, PABX, Fax, 6 lights
7200 4X150AH 4
10800 6X150AH 6
Efecto SP 5000 5000W 17A


7200 4X150AH 2 TV, Hifi, Fridge, Microwave, PC, VCR, 30 lights 8PCs, 2 Printers, Fax/Copier, PABX, Fax, lights
14400 8X150AH 4
OPTI SP 6000 6000W 25A 9600 4X200AH 2   12PCs, 2 Printers, Fax/Copier, lights
19200 8X200AH 4