LiTime 3000W 12V Pure Sine Wave Inverter Charger

SVT Score, Lower

Versus
4.7
SVT SCORESRead review

A 12 V, 3,000 W pure sine inverter with a 9,000 W surge, a 5 to 45 A charger, a 10 ms transfer to shore power and a wired LCD remote.

$500

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SKU: L-INVCHA-12V3KW-H1 Category: Brand:

Usability

4.7 out of 10

At 3,000 W continuous it sits on the 3,000 to 3,999 W rung for an inverter-charger, so it scores 8 on capacity.

LiTime rates its inverter efficiency above 88 percent peak, short of the 89 percent rung, and its normal-mode no-load draw under 38 W is 12.7 W per kW of its 3,000 W rating, which on its own meets only the 4 rung, so it scores 2 on efficiency.

Better on efficiencyRenogy 3000W HF Inverter Charger$666.99Scores 7.0

Its 9,000 W surge for 10 seconds is 3.0 times its continuous rating, so it scores 10 on operating range.

It switches between shore power and battery in 10 ms by LiTime's product page, but it has no built-in MPPT, no split-phase output, no parallel stacking, no battery communication port and no Bluetooth or app, and its 45 A charger is under 100 A, so it scores 3 on features.

Better on featuresLiTime 24V 3000W Solar Inverter Charger$479.99Scores 6.0

No certifier directory lists this unit (Intertek, UL, CSA, LabTest, TÜV, SGS), and LiTime's page and manual name no safety listing, so it scores 2 on verification.

Better on verificationRenogy REGO 3000W Inverter ChargerIntertek's directory lists the RIV1230RCL-1SS to UL 458. $989.99Scores 8.0

LiTime's product page gives it a 2-year warranty, the term its US warranty policy lists for 12 V 3000 W inverters, so it scores 3 on warranty and support.

Warranty and returns

LiTime sets warranty terms by product, for the original buyer only, with proof of purchase.

$499.99 at litime.com.

Triple surge, fast transfer, wired remote

The L-INVCHA-12V3KW-H1 is LiTime's 12 V, 3,000 W pure sine wave inverter charger for RVs, boats, trucks and home backup, with a 5 to 45 A battery charger and an automatic transfer to shore power.

Verdict

It suits a buyer who wants one 12 V unit to run an RV or boat from batteries and charge them from shore power with automatic switchover, and who will not need solar charging, phone monitoring or a second unit in parallel.

Strengths

  • 9,000 W surge for 10 secondsthree times its rating
  • Switches between shore and battery in 10 ms
  • Adjustable 5 to 45 A charger with a LiFePO4 profile
  • Wired LCD remote on a 23 ft cable
  • AC terminal block carries the full 3,000 W

Drawbacks

  • Efficiency rated above 88 percentshort of the 89 percent rung
  • Under 38 W no-load draw in normal mode12.7 W per kW
  • Front AC outlet limited to under 1,000 W
  • No solar MPPTBluetooth or battery communication port
  • No neutral-to-ground switching statedwhich marine installs need

Social score

4.8 out of 10
Reddit5.0 out of 10
Liked
  • Charged at 45.2 A, its full rated current, per one owner's screenshot
Complaints
  • Charging stalled at 227.7 of 230 Ah on a 25 ft extension cord, per one owner

An r/RVLiving owner of the 12 V 3000 W inverter charger, charging a 230 Ah battery from a house outlet through a 25 ft 16-gauge extension cord, posted a screenshot of it charging at 45.2 A and 605 W but stopping at 227.7 Ah, which he put down to voltage drop in the cord (July 2025).

Google4.0 out of 10
Liked
  • Ran 2,000 W for 15 to 20 minutes without trouble, per one owner
Complaints
  • Shut down with an alarm until the power switch was cycled, per three owners
  • Charger held at 10 to 15 A whatever the knob setting, per one owner
  • Display read 17 V against 14.4 V measured during a fault, per one owner

DIY Solar Forum owners of the 12 V 3000 W inverter charger report shutdowns. The owner who opened a September 2024 thread ran 2,000 W for 15 to 20 minutes without trouble but twice found it shut down with a faint beep until he cycled the power switch, and saw the charger hold at 10 to 15 A whatever the knob setting. A second owner in the same thread reported random alarm-and-shutdown faults under minimal load about a year after installing it, once with the display reading 17 V against 14.4 V measured at the terminals, and a third reported the same fault on shore power (July 2026).

YouTube6.0 out of 10
Liked
  • Ran an off-grid household for a week without shutting off, per one channel
  • A quiet, pleasant hum in use, per one channel

ElectricBlake reviewed the 12 V 3000 W inverter charger after using it for a week to power an off-grid household from LiFePO4 batteries, and reported that it ran continuously that week and shut off only when he turned it off for maintenance (November 2024).

Amazon4.0 out of 10
Liked
  • Generator-to-battery transfer keeps devices running, per one owner
  • Easy to install and well built, per one owner
  • Switches seamlessly between grid and inverter power, per one owner
Complaints
  • Big and heavy, per one two-star reviewer
  • An earlier unit lasted about a month, per one owner reviewing its replacement

LiTime's Amazon US listing for the 12 V 3000 W inverter charger (B0CT3BXCH4) reads 3.5 from 25 ratings, split 45 percent five-star, 18 four-star, 6 three-star, 9 two-star and 22 one-star (read October 2026). A second LiTime listing of the same model (B0CT8QBJVR) shows 3.5 from 26.

User reviewsNot scored

The retailer pool is blank: Walmart's 3000 W inverter charger listing shows no ratings, and Home Depot, Lowe's and Best Buy carry no LiTime listing.

Trustpilot

Trustpilot rates LiTime 4.6 from 1,630 reviews on a claimed profile that LiTime pays Trustpilot to subscribe to (October 2026).

Track record
  • The BBB rates LiTime F on 4 complaints (October 2026).
  • No CPSC or Health Canada recall names LiTime or Ampere Time, searched in October 2026.
Not countedExcluded

Not counted in any pool: litime.com's own review widget, LiTime's YouTube channel and Facebook groups, or its affiliate and creator programs.

Brand-level

4.6 on Trustpilot, an F from the BBB, no recalls

Specs

  • CapacityNot applicable
  • AC Output3,000-3,999 W
  • System Voltage12 V
  • Panel PowerNot applicable
  • Charge Current40-49 A
  • Safety ListingNone verifiable
  • Cell TypeNot applicable
  • Low-Temp ChargingNot applicable
  • Warranty2 Years
  • MonitoringWired display or port only
  • Weight52.0 lb

At a glance

  • M8 battery terminals
  • 16.54 x 7.28 x 7.09 in
  • Screwdriver and lugs in box
  • Grid/inverter priority dip

LiTime is the brand of Shenzhen Ampere Time Digital Energy Technology, founded in 2018 and renamed from Ampere Time in December 2022.

It sells direct from litime.com, which ships US orders from warehouses in Los Angeles and Dallas, and through its Amazon store and Walmart's marketplace.

The LiTime L-INVCHA-12V3KW-H1 is a 12 V pure sine wave inverter charger rated 3,000 W continuous and 9,000 W for 10 seconds, with 110 V AC ±10 percent 60 Hz output, a 10.5 V to 16 V DC input window, inverter and charger efficiency each rated above 88 percent peak and a normal-mode no-load draw under 38 W (LiTime's Like New listing of the same model adds an Eco mode under 4 W). Its charger takes 110 V AC and is adjustable from 5 A to 45 A by a knob, with a selector for LiFePO4 (the default), AGM, SLA, U.S. and European gel, open lead-acid and calcium batteries plus a desulphation cycle, and LiTime's page says it transfers between grid and battery in 10 ms. A dip switch sets grid-first or inverter-first priority and a 100-127 V or 90-135 V AC input range. The AC side has a single outlet good for under 1,000 W and an output terminal block that carries the full 3,000 W, with breakers on the charger input and inverter output; the DC side takes M8 terminals, and LiTime's manual calls for 1/0 AWG battery cable of 1.6 to 2 ft and a 350 A to 400 A fuse. It measures 16.54 x 7.28 x 7.09 in by the product page (the manual gives 16.54 x 8.66 x 7.09 in) and weighs 52 lb, and it operates from 14 °F to 104 °F. The box holds a wired LCD remote panel (6.69 x 3.94 x 1.5 in) with a 23 ft cable and its mounting screws and anchors, six inverter mounting screws, a slotted screwdriver, six copper wire connectors and six heat-shrink tubes; battery cables are not included. It has no solar input, no Bluetooth and no battery communication port. LiTime gives it a 2-year warranty.

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