Phoenix RLW-5.4-X1 Wall 51.2V 105Ah Lithium Battery Price in Pakistan

The Phoenix RLW-5.4-X1 is a 48V wall battery: 51.2V nominal, 105Ah and 5.37 kWh. Most 5kW lithium batteries are 100Ah and 5.12 kWh, so the extra 5Ah gives this model about 5% more stored energy in the same class. Phoenix lists a cycle life of 5,000+ cycles. The LiFePO4 cells need no water, are safer than NMC lithium, and let you use about 90% of the capacity every day.

Backup at common loads: two fans, lights and a fridge (about 300W) run for about 15 hours. Four fans, eight LED lights and a TV (about 450W) run for about 10 hours. A 1-ton inverter AC with a fan and lights (about 920W) runs for about 5 hours. Those small gains over a 5.12 kWh pack add up over a long summer night.

It suits 48V hybrid and off-grid inverters such as Growatt, Inverex, Knox, Fronus and Deye. Set a lithium or LiFePO4 profile in the inverter, and check the datasheet for BMS communication support. The battery settings guide (Lithium Battery Settings for Growatt, Deye, Inverex and Knox) shows the usual values. Mount it on a solid indoor wall near the inverter, away from direct sun and rain; no IP rating is listed.

Inside the Phoenix range: the RLR-5.1-X1 Rack is 100Ah and 5.12 kWh for cabinets and stacks, with no cycle or warranty figure published. The RLW-5.4-X1 Wall holds a little more energy, hangs on the wall, and has a published 5,000-cycle rating. The 24V RLC-2.7-X1 cube lists 3 years of warranty, but Phoenix has not published a warranty period for this wall model, so ask us for the terms before you order. At 5,000 cycles, one full cycle a day comes to more than 13 years of rated cycling.

When planning the install, choose a wall that can carry the weight and is close enough to keep the DC cables short. A shaded inside wall of a utility room, stair hall or garage is ideal. Keep the area clear of water pipes and leave a little space above and below the unit for air flow. A DC breaker between battery and inverter makes later service safe and simple.

• Best for: one-battery 48V solar homes, evening and night backup, short AC use
• Look elsewhere if: you want all-night AC (see the 10kW batteries (10kW Lithium Battery)) or you run a 24V UPS
• Full brand range: (Phoenix Lithium Battery prices)

Battery

Brand

Phoenix

Model

RLW-5.4-X1 Wall

Chemistry

LiFePO4 (lithium iron phosphate)

Nominal voltage

51.2V

Capacity

105Ah

Energy

5.37 kWh

Usable energy (90% DoD)

about 4.8 kWh

Capacity class

5kW (5.37 kWh)

Life & warranty

Cycle life

5,000+ cycles (maker rating)

Warranty

Brand warranty (ask before ordering)

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

Pakistani brand, China-made cells