Volnex Alpha 5.12 51.2V 100Ah Lithium Battery Price in Pakistan

The Volnex Alpha 5.12 is a 48V wall battery: 51.2V nominal, 100Ah and 5.12 kWh, the standard size people search as a 5kw lithium battery or 48v 100ah. Its strongest point is the 10-year brand warranty that Volnex lists for the Alpha series. The LiFePO4 cells need no water, are safer than NMC chemistry and give about 90% usable capacity.

Backup at common loads: two fans, lights and a fridge (about 300W) run for about 14 hours. Four fans, eight LED lights and a TV (about 450W) run for about 9 hours. A 1-ton inverter AC with a fan and lights (about 920W) runs for about 5 hours. With solar charging in the day, it covers the evening and much of the night for a typical family.

It suits 48V hybrid and off-grid inverters such as Growatt, Inverex, Knox, Fronus and Deye. Set the battery type to lithium or a LiFePO4 user profile, and check the datasheet for BMS communication. The compatibility guide (Which Lithium Battery Works With My Inverter?) explains what to match. Mount it on an indoor wall close to the inverter; the Alpha has no IP rating listed.

Volnex sells two 5.12 kWh models with the same voltage and Ah. The Alpha 5.12 lists a 10-year warranty but no IP rating, so it belongs indoors. The Armor 5.12 is IP65-rated, so it can be fitted in a porch, garage or shaded outdoor wall, but Volnex has not published a warranty period for it. If your battery will live inside the house, the Alpha 5.12 is the better pick for its warranty. If it must go outside, look at the Armor. For 24V systems there is the Alpha 2.56, and for all-night AC there is the Alpha 16 (16.07 kWh).

A long warranty matters most on a battery that cycles every day. In a solar home the battery charges from panels in the day and drains at night, so it may see more than 300 cycles a year. Keep the invoice and warranty card safe, ask us how claims work before you order, and keep the battery indoors in a shaded spot so that heat does not become the reason for an early claim. A cool room also helps the BMS keep the cells balanced.

See all 5kW batteries (5kW Lithium Battery) or the full Volnex range (Volnex Lithium Battery prices).

Battery

Brand

Volnex

Model

Alpha 5.12

Chemistry

LiFePO4 (lithium iron phosphate)

Nominal voltage

51.2V

Capacity

100Ah

Energy

5.12 kWh

Usable energy (90% DoD)

about 4.6 kWh

Capacity class

5kW (5.12 kWh)

Life & warranty

Cycle life

As per maker datasheet

Warranty

10 years (brand warranty)

Design

Mounting

Wall-mounted

Battery management

Built-in BMS

Compatibility

Inverter type

48V inverters, UPS and solar systems

Communication

CAN / RS485 (check your inverter list)

Origin

Brand origin

Imported, China