Knox Rackwall 8 51.2V 150Ah Lithium Battery Price in Pakistan

The Knox Rackwall 8 is a 7.5kW-class battery with a true capacity of 7.68 kWh: 51.2V and 150Ah of LiFePO4 cells. It is built as a rack or cabinet module rather than a single wall box, which suits neat installs in a cabinet or equipment rack. Our data does not list a cycle count, IP rating or warranty period for it.

Backup time from full: about 21 hours on 2 fans, lights and a fridge (about 300W), about 14 hours on 4 fans, 8 LED lights and a TV (about 450W), and about 7 hours on a 1-ton inverter AC with a fan and lights (about 920W). That is about 50% more than a 5.12 kWh battery, which is often the difference between the AC stopping at 2 am and running till morning. Read how backup time is worked out (Lithium Battery Backup Time: How Many Hours Will It Run?).

Compatibility: it is a 48V-class battery for 48V hybrid and off-grid inverters from Knox, Inverex, Growatt, Fronus and Deye, and suits 6kW to 8kW systems well. Set lithium or user mode and confirm BMS communication for your inverter model.

Installation: as a rack or cabinet module, it is meant to sit in a battery rack or cabinet indoors. Make sure the rack is rated for the weight and has air flow. With no IP rating listed, keep it in a dry room away from dust and sun. Fit a DC breaker and use cable sized for 48V high current.

Life and warranty: not published in our data. Ask us before ordering and check the datasheet. LiFePO4 in general gives thousands of cycles and about 90% usable capacity.

Planning tip: a rack module like this is easy to place next to the inverter, a Wi-Fi router and other equipment in one corner. Label the DC breaker clearly so anyone in the house can switch it off safely, and keep the rack away from the kitchen and bathroom walls.

Who should buy it? Homes that find 5kW a little short, especially for AC, but do not need a full 10kW battery. It is also a good fit for small offices with a server rack or cabinet. If you need more, the Knox Rackwall 10.5 and Powerbase 10.5 are the next sizes. Compare 5kW batteries (5kW Lithium Battery), 10kW batteries (10kW Lithium Battery) and the Knox range (Knox Lithium Battery prices).

Battery

Brand

Knox

Model

Rackwall 8

Chemistry

LiFePO4 (lithium iron phosphate)

Nominal voltage

51.2V

Capacity

150Ah

Energy

7.68 kWh

Usable energy (90% DoD)

about 6.9 kWh

Capacity class

7.5kW (7.68 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