Lithium Battery for 1 Ton & 1.5 Ton AC in Pakistan

How long a lithium battery runs an AC

These figures use hours = kWh x 0.9 x 0.92 x 1000 / watts. A 1 ton inverter AC is taken at about 1,000W and a 1.5 ton at about 1,500W; real draw drops once the room cools.

• 5kW (5.12 kWh): 1 ton about 4 hours; 1.5 ton close to 3 hours.
• 10kW (10.24 kWh): 1 ton about 8.5 hours; 1.5 ton about 5.7 hours.
• 15kW (15.36 kWh): 1 ton about 12.7 hours; 1.5 ton about 8.5 hours.
• 16kW (16.07 kWh): 1 ton about 13 hours; 1.5 ton about 9 hours.
• 30kW class: three 1 ton ACs (3,000W) for about 8.5 to 9 hours.

1 ton AC ke liye kitni battery

For one 1 ton inverter AC for 4 hours, a 5kW battery is enough. For a full 8-hour night, choose 10kW. For two 1 ton ACs through the night, choose 16kW or more. Non-inverter ACs draw more power and a high starting current, so they need a bigger battery and inverter. See 10kW batteries (10kW Lithium Battery) and 16kW batteries (16kW Lithium Battery).

Inverter size for AC loads

The inverter must handle the AC's running and starting power plus your other loads. A 1 ton inverter AC usually needs a 3kW or larger hybrid inverter; two ACs need about 6kW. A battery gives hours, while the inverter decides how many watts you can run at once. Check that the battery's discharge current suits your load.

Tips to get more AC backup

• Set the AC to 26 degrees and use a fan with it.
• Use inverter ACs; they draw far less after the room cools.
• Run the AC on solar in the day and save the battery for the night.
• Keep about 10 to 20% battery reserve so the inverter does not cut off suddenly.

Use the backup calculator (Battery Backup Calculator) for your exact load.

Buying checklist for an AC battery

Before you buy a battery to run your AC, check these points.

• Match the battery voltage to your inverter or UPS.
• Check the cycle rating and warranty years; where a value is missing, ask or check the datasheet.
• Keep the invoice and serial number for any warranty claim.
• Set the charge voltage and cut-off from the datasheet, not from memory.
• Install in a cool, ventilated spot, away from direct sun.
• Confirm the battery is on your inverter's list and set the right protocol.
• Check that the inverter's output can carry the AC plus your other loads.

If you want AC through the whole night every night, size for that from the start. Adding a second battery later works, but buying the right size first is simpler.