Home Battery System GuideThe Panasonic EverVolt 2.0 and LG RESU16H Prime are two high-capacity residential batteries aimed at whole-home backup and self-consumption. This comparison lists only published figures so the numbers read directly rather than through a ranking.
How to read this comparison
Every figure below comes from a named source: EnergySage specification and review pages for each product. Capacity in kilowatt-hours sets runtime, and power in kilowatts sets simultaneous load. Note that the EverVolt 2.0 lists on-grid and off-grid power separately.
The EverVolt 2.0 is modular and stackable, while the RESU16H Prime is a compact single unit, so a single-configuration comparison is a scale note, not a quality judgment.
No winner is declared. The right choice depends on target size, coupling preference, and installer support.
Panasonic EverVolt 2.0, from Panasonic's specs
EnergySage lists the EverVolt 2.0 EVHB-L6 at 17.1 kWh usable capacity, with the larger EVHB-L9 at 25.65 kWh usable. Panasonic lists a 9.6 kW on-grid power rating and a 7.6 kW off-grid rating.
The EverVolt 2.0 uses lithium iron phosphate chemistry with 90 percent roundtrip efficiency, a 100 percent depth of discharge, and a 10-year warranty rated for 6,000 cycles.
LG RESU16H Prime, from LG's specs
EnergySage lists the LG RESU16H Prime at 16 kWh usable capacity with 7 kW continuous power and an 11 kW peak rating. It uses lithium-ion chemistry.
The RESU16H Prime lists a 90% roundtrip efficiency and a 10-year warranty.
Where they differ on paper
On single-configuration capacity the EverVolt 2.0 EVHB-L6 lists 17.1 kWh usable versus the RESU16H Prime's 16 kWh. The EverVolt is modular and stacks to a larger EVHB-L9 at 25.65 kWh, while the RESU is a fixed single unit.
Power is stated differently. Panasonic lists 9.6 kW on-grid and 7.6 kW off-grid, while LG lists 7 kW continuous with an 11 kW peak. Both list 90% roundtrip efficiency.
Chemistry differs on paper: Panasonic specifies LFP, while EnergySage lists the RESU as lithium-ion. Warranty is 10 years for both, with Panasonic adding a 6,000-cycle rating. Which fits depends on target size and coupling preference.