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Rectangular metal inverter charger with terminal block and marine coating

Thinkstar

Thinkstar 4000 Watt Pure Sine Inverter Charger 12Vdc 120/240Vac Split Phase

SKU CH-ZWDH-5FXVP

Delivers 4000 watts pure sine power with 12000 watt surge for 20 seconds, 115 amp multi-stage charging for lithium, gel, AGM and lead batteries, and split-phase 120/240 VAC output from 12 VDC input

  • 4000 W continuous power runs heavy loads
  • 12 000 W surge for 20 s starts motors easily
  • 120/240 V split-phase output powers both circuits
  • 115 A multi-stage charger supports LiFePO₄, gel, AGM, lead
  • 40 A transfer switch switches in 10 ms

What it does and who uses it

This 4000 watt low frequency inverter charger converts 12 V DC to 120/240 V AC split-phase power for off-grid homes, mobile work sites, marine and RV installations. A 300 percent surge rating delivers 12000 watts for up to 20 seconds, letting motors and compressors start reliably.

Charger flexibility and transfer switch

The built-in four-stage smart charger handles lithium LiFePO4, gel, AGM and lead chemistries with an adjustable rate from off to 115 amps and over-charge shutdown at 15.7 V. A 40 amp automatic transfer switch moves between inverter and shore power in 10 ms maximum.

Terminal block and marine coating

Direct-connect AC terminal blocks provide the high-surge path without plug limitations. Marine-coated internals resist humidity and salt spray, while the 12 V input suits standard vehicle and boat battery banks.

How it compares

Measured against everything we stock in DC-to-AC Power Inverters, at today’s prices. Recalculated every night.

Price $1,930.99
Pricier than about 92% of the 866 comparable items (median $25.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How often will the marine-coated internals need inspection or replacement?

The marine coating protects the internal boards from moisture and salt, so no scheduled replacement is required; inspect terminals and fans during routine battery maintenance.

What limits continuous output before the 12000 watt surge capability drops?

Continuous rating is 4000 watts; the 300 percent surge holds for 20 seconds then the inverter returns to its steady 4000 watt limit.

How loud are the cooling fans and how hot does the case get during all-day operation?

Fan speed ramps with load and temperature; the marine-coated chassis dissipates heat through its external fins, keeping surface temperature within safe limits for continuous duty.

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