01 · FAQ
How many batteries do I need for a 5 kW solar system?
It depends on backup, not on the panels. One 5.12 kWh unit covers lights, fans, a fridge and internet for an evening. To run an air conditioner through an outage, plan on two or more.
Mastoor Energy · Price guide
Solar battery price in Pakistan (November 2026)
What lithium solar batteries cost in Pakistan this month, per unit and per kWh, how long each bank runs your home, and how to size one for load-shedding.
Key points
- A lithium (LiFePO4) unit of about 5.12 kWh costs roughly Rs 2 lakh to 2.9 lakh depending on the brand.
- That is about Rs 39,000 to 60,000 per kWh.
- One unit runs a 1 kW load for about four hours.
- Under net billing, a battery lets you use your own midday surplus in the evening instead of exporting it cheaply.
Rates by brand
Lithium battery prices
LiFePO4 units for 48 to 51.2 V systems, installed. Market rates surveyed from dealer listings.
| Battery | Capacity | Price per unit | Per kWh |
|---|---|---|---|
| Standard LiFePO4 | 5.12 kWh | Rs 200,000 | Rs 39,062 |
| Dyness | 5.12 kWh | Rs 225,000 | Rs 43,945 |
| Pylontech | 4.8 kWh | Rs 290,000 | Rs 60,417 |
Market estimate at November 2026 rates, shown with a range of plus or minus 10%. Not a Mastoor Energy quotation.
Backup time
How long each battery bank lasts
Usable capacity after allowing for depth of discharge and conversion losses.
| Bank | Capacity | Usable | At 1 kW load | At 2 kW load | Price, standard LiFePO4 |
|---|---|---|---|---|---|
| 1 × 5.12 kWh | 5.1 kWh | 4.2 kWh | 4 hours | 2.1 hours | Rs 200,000 |
| 2 × 5.12 kWh | 10.2 kWh | 8.5 kWh | 8 hours | 4.2 hours | Rs 400,000 |
| 3 × 5.12 kWh | 15.4 kWh | 12.7 kWh | 13 hours | 6.4 hours | Rs 600,000 |
| 4 × 5.12 kWh | 20.5 kWh | 17.0 kWh | 17 hours | 8.5 hours | Rs 800,000 |
| 6 × 5.12 kWh | 30.7 kWh | 25.4 kWh | 25 hours | 12.7 hours | Rs 1,200,000 |
Market estimate at November 2026 rates, shown with a range of plus or minus 10%. Not a Mastoor Energy quotation.
Why lithium
Almost all new hybrid systems in Pakistan now use lithium iron phosphate (LiFePO4) batteries. Compared with tubular lead-acid batteries they can be discharged to about 90% of their capacity without damage, they recharge in a few hours of sun, they last several times as many cycles, and they need no maintenance. They cost more to buy and less per year of service.
How to size a battery
- List what must stay on in an outage. Lights, fans, a fridge, the router and a TV are roughly 0.5 to 1 kW. Add about 1 kW for each inverter air conditioner you want to keep running.
- Decide the hours. Typical load-shedding blocks are two to four hours. Covering a whole evening takes more.
- Multiply. Load in kW × hours = kWh you need. Divide by about 0.83 to allow for depth of discharge and losses, then round up to whole 5.12 kWh units.
A 1 kW essential load for four hours needs 4 kWh, which is one unit. A 2.5 kW load including an air conditioner for four hours needs 10 kWh usable, which is three units.
The load calculator does this from your appliance list.
Batteries and net billing
Since February 2026, new solar connections export under net billing at about Rs 11 a unit, while buying a unit back in the evening costs several times that. A battery that stores your midday surplus and returns it after sunset is doing work worth the full tariff on every unit. That has made hybrid systems a stronger choice than they were under net metering.
The ROI calculator shows the effect: switch the system type between on-grid and hybrid and compare the payback.
What else to check
- Compatibility with your inverter, including the communication protocol.
- Cycle rating and warranty period.
- Whether the price includes the cabinet, cables and installation.
- A battery management system with cell balancing and over-temperature protection.
Your system
Size the battery from your appliances
The load calculator sizes a battery for the backup hours you choose. The cost calculator prices it.
Questions
Solar battery FAQ
02 · FAQ
How long does a lithium solar battery last?
LiFePO4 batteries are rated for several thousand charge cycles, which is typically more than ten years of daily use. Check the cycle rating and warranty of the specific model.
03 · FAQ
Lithium or tubular lead-acid?
Lithium costs more up front but can be discharged deeper, charges faster, lasts several times as many cycles and needs no topping up. Tubular batteries are cheaper to buy and suit light backup on a small budget.
04 · FAQ
Can a battery run an air conditioner?
Yes, if the bank is large enough. A 1.5 ton inverter AC draws about 1 kW on average, so one 5.12 kWh unit runs it for roughly four hours with nothing else on.
Keep reading
Other price guides
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