Knox Powerwall 3.1 25.6V 100Ah Lithium Battery Price in Pakistan

The Knox Powerwall 3.1 is a 24V-class wall battery. At 25.6V and 100Ah it stores 2.56 kWh, the same energy as two 12V 100Ah lithium batteries in series, but in one neat case. It uses LiFePO4 cells and Knox rates it for 6,000+ cycles. Unlike the 3.0 LCD, the model name does not mention a display.

Backup time from full: about 7 hours on 2 fans, lights and a fridge (about 300W), about 5 hours on 4 fans, 8 LED lights and a TV (about 450W), and about 2 hours on a 1-ton inverter AC with a fan and lights (about 920W). For many homes that replaces a pair of 12V tubular batteries with more usable energy, because LiFePO4 can use about 90% of its capacity. Our lithium vs tubular guide (Lithium vs Tubular Battery: Which Is Better for Solar?) explains the gap.

Compatibility: it suits 24V inverters and UPS systems such as the 24V models from Knox, Inverex and Fronus. It is not for 12V UPS units or 48V hybrid inverters. Set battery type to lithium or user mode and use the charge voltage from the datasheet. Many buyers switching from tubular forget this step and the battery never fills fully.

Installation: it hangs on an indoor wall. No IP rating is listed, so keep it dry and out of direct sun. Use the right cable size, as 24V systems carry about double the current of a 48V system for the same load.

Life and warranty: 6,000+ cycles means more than 15 years at one cycle a day on paper. The warranty period is not published in our data, so ask before ordering.

A practical tip: when you remove old tubular batteries, the inverter may still remember lead-acid float and boost voltages. Reset these to the lithium values before the first charge. Many complaints of "lithium battery not charging full" in Pakistan come from this one setting, not from the battery itself.

Who should buy it? Homes and small shops on a 24V inverter that want to retire tubular batteries. If you want a display on the battery, the 3.0 LCD has the same capacity and cycle rating. If you need AC backup for hours, a 48V 5kW battery is the next step (5kW Lithium Battery). See all Knox batteries (Knox Lithium Battery prices).

Battery

Brand

Knox

Model

Powerwall 3.1

Chemistry

LiFePO4 (lithium iron phosphate)

Nominal voltage

25.6V

Capacity

100Ah

Energy

2.56 kWh

Usable energy (90% DoD)

about 2.3 kWh

Capacity class

24V

Life & warranty

Cycle life

6,000+ cycles (maker rating)

Warranty

Brand warranty (ask before ordering)

Design

Mounting

Wall-mounted

Battery management

Built-in BMS

Compatibility

Inverter type

24V inverters, UPS and solar systems

Origin

Brand origin

Pakistani brand, China-made cells