Name: SunGoldPower 2000W LF Inverter Charger
Brand: SunGoldPower

A tough low-frequency inverter-charger for cabins and RVs that run motor loads. It is heavy and has no safety listing.

Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Low-frequency transformer rides out 3x surges for 20 seconds, so it starts pumps and compressors
Built-in 70 A charger and transfer switch replace three separate boxes
LiFePO4 charging preset
LCD remote included

Cons

The SunGoldPower LFP 12V family

Every SunGoldPower LFP 12V model we rank, smallest first. Ratings compare each against its own size.

Model	Continuous	Rating	Price
SunGoldPower 2000W LF Inverter Charger (this one)	2,000 W	3.1/5	$730
SunGoldPower 3000W LF Inverter Charger	3,000 W	3.2/5	$859
SunGoldPower 4000W LF Inverter Charger	4,000 W	3.3/5	$1,020
SunGoldPower 4000W LF Split-Phase 12V	4,000 W	3.0/5	$1,040

How it scores

The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.

Output
Model number	LFP2K12V120VSG
Type	Pure sine wave inverter-charger
Continuous power	2,000 W
Surge power	6,000 W for 20 s
DC input range	10 to 16 V
Power-saving draw	2.1 A
Peak efficiency	88%
Connections
GFCI outlets	Yes
Hardwire terminal	Yes
Transfer switch	Yes
Charger	70 A
Lithium charge profile	Yes
Control and build
Remote	Included
App	No
Display	No
Safety listing	No
Cooling	load-controlled fan
Dimensions	19.9 x 9.5 x 7.8 in
Weight	44.1 lb
Warranty	1 year

For larger RVs and boats that want a listed inverter-charger with fast lithium charging and generator support.

$1,913.32

For full-time RVers who want a rugged low-frequency inverter-charger that will start air conditioners and charge fast from a generator.

$2,110.43

For smaller RVs and trucks that want a rugged, listed 1,000 W inverter-charger and don’t mind paying for it.

$1,192