Knox Rackwall 15 51.2V 280Ah Lithium Battery Price in Pakistan

The Knox Rackwall 15 is a 15kW-class battery. It uses 280Ah LiFePO4 cells in a 51.2V pack, giving 14.3 kWh, and comes as a rack or cabinet module. Our data does not list a cycle count, IP rating or warranty period for this model, so those are items to confirm at order time.

Backup time from full: about 39 hours on 2 fans, lights and a fridge (about 300W), about 26 hours on 4 fans, 8 LED lights and a TV (about 450W), and about 13 hours on a 1-ton inverter AC with a fan and lights (about 920W). For a home with one AC running at night, that is a full night with charge left over. Two ACs roughly halve those hours.

Compatibility: it is a 48V-class battery for 48V hybrid and off-grid inverters from Knox, Inverex, Growatt, Fronus and Deye, and suits 8kW to 12kW systems. A battery this big benefits from an inverter with high charge current, so it can fill during the solar day. Confirm BMS communication and charge settings; see the lithium battery settings guide (Lithium Battery Settings for Growatt, Deye, Inverex and Knox).

Installation: as a rack or cabinet module it goes in an indoor rack or cabinet that can carry its weight. Leave space for air around it, keep it in a dry room away from sun and dust, and fit a properly sized DC breaker and cable.

Life and warranty: not published for this model in our data. 280Ah LiFePO4 cells are a common long-life storage format, but ask us what Knox offers before you order.

Planning tip: 14.3 kWh needs roughly 3.5kW of panels just to refill the battery each day (1kW makes about 4 units a day in Pakistan), plus panels for your daytime load. Match the array to the battery, or the extra storage will sit half empty on cloudy days.

Who should buy it? Large homes with two or more ACs, families who want to store most of a day's solar, and offices or clinics with a cabinet-style install. If you want a floor-standing unit with a published 8,000+ cycle rating and 5-year warranty, the Knox Powerbase 16.0 is close in size. If 14.3 kWh is more than you need, the Rackwall 10.5 is a step down. Compare 15kW batteries (15kW Lithium Battery), 16kW batteries (16kW Lithium Battery) and the Knox range (Knox Lithium Battery prices).

Battery

Brand

Knox

Model

Rackwall 15

Chemistry

LiFePO4 (lithium iron phosphate)

Nominal voltage

51.2V

Capacity

280Ah

Energy

14.3 kWh

Usable energy (90% DoD)

about 12.9 kWh

Capacity class

15kW (14.3 kWh)

Life & warranty

Cycle life

As per maker datasheet

Warranty

Brand warranty (ask before ordering)

Design

Mounting

Rack / cabinet module

Battery management

Built-in BMS

Compatibility

Inverter type

48V inverters, UPS and solar systems

Communication

CAN / RS485 (check your inverter list)

Origin

Brand origin

Pakistani brand, China-made cells