Specs-based comparison

Apex 300 2764.8Wh vs SOLIX C2000 Gen 2 2048Wh

The useful question is not which battery is bigger, but which power profile fits the way you plan to use it.

2026 specification snapshot

Quick verdict

The decision in one minute

The capacities are relatively close, so AC output is the sharper separator: SOLIX C2000 Gen 2 2048Wh supports the larger published load.

Capacity leader: Apex 300 2764.8Wh   Portability leader: SOLIX C2000 Gen 2 2048Wh   AC output leader: SOLIX C2000 Gen 2 2048Wh

Specs-based comparison

A side-by-side reading of published specifications, limited to specification fields and calculated estimates.

Core specifications that affect fit and runtime
SpecificationApex 300 2764.8WhSOLIX C2000 Gen 2 2048WhSpecification edge
Battery capacity2764.8Wh2,048WhApex 300 2764.8Wh
Listed weight83.8 lbs41.7 lbsSOLIX C2000 Gen 2 2048Wh
Maximum solar input100W200WSOLIX C2000 Gen 2 2048Wh
AC output3840W4000WSOLIX C2000 Gen 2 2048Wh
Battery chemistryLiFePO4LiFePO4Tie

Which one should you buy?

Buy Apex 300 2764.8Wh if:

  • you want the larger 2764.8Wh capacity
  • its 100W solar-input specification suits your charging setup
View Apex 300 2764.8Wh

Buy SOLIX C2000 Gen 2 2048Wh if:

  • you prefer the smaller-capacity power profile for shorter sessions
  • lower listed weight (41.7 lbs) matters
  • you need the higher listed AC output (4000W)
View SOLIX C2000 Gen 2 2048Wh

Runtime estimate by use case

Apex 300 2764.8Wh: 2764.8Wh is positioned here for extended backup and higher-energy use.
SOLIX C2000 Gen 2 2048Wh: 2,048Wh is positioned here for extended backup and higher-energy use.
Calculated planning estimates
Device scenarioApex 300 2764.8WhSOLIX C2000 Gen 2 2048Wh
Full-size refrigerator120W average planning load~19 hours~14 hours
Home office180W combined load~13 hours~9.7 hours
CPAP + router55W combined load~42 hours~31 hours
Television + lights140W combined load~16 hours~12 hours
Portable cooler45W average planning load~52 hours~38 hours

Method: nameplate capacity x 0.85 / device watts. The 15% allowance represents typical conversion and system overhead for planning. Actual duration depends on load behavior, temperature, battery state, and power mode.

FAQ

How are the runtime estimates calculated?

Each estimate uses 85% of the nameplate watt-hour capacity, then divides by the stated device load. It is planning math based on specifications, not a measured result.

Can SOLIX C2000 Gen 2 2048Wh run a CPAP overnight?

At a 40W planning load with the humidifier off, the estimate is ~43 hours. Heated tubing or a humidifier can materially increase consumption.

Can Apex 300 2764.8Wh run a refrigerator?

Its listed AC output is 3840W. If the refrigerator's running and startup demand stay below that limit, the planning estimate at a 60W average load is ~39 hours.

Which model is the stronger fit for refrigerator and router support?

Apex 300 2764.8Wh has the larger published capacity. Confirm that its 3840W AC rating also covers the starting and continuous load of your appliance.

Which is better for a compact camp setup?

SOLIX C2000 Gen 2 2048Wh has the portability advantage by listed weight, while Apex 300 2764.8Wh provides more stored energy. Pick the constraint that matters most for this use case.

Editorial basis: Published product specifications and transparent arithmetic. Verify ports, bundled accessories, charging limits, and appliance startup requirements on the current retailer or manufacturer listing before purchase.