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SunGold Power 4000W 48V Split Phase Pure Sine Inverter Charger – Low Frequency, Off-Grid

$1,140.00
$1,040.00
$1,140.00
$1,040.00
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We offer free shipping across the United States, with orders processed within 1–2 business days and delivered in about 4–7 business days. Every order comes with tracking and insurance, and our team is here to help if your package is delayed, lost, or arrives damaged. Returns are accepted within 30 days, with no cost for return shipping. Please ensure your shipping address is accurate to avoid delays. Refer to full policy here.

What is your Return Policy?

We accept returns within 30 days of delivery if items are unused, undamaged, and in their original packaging. Return shipping is free, and refunds are processed within 7 days after inspection to your original payment method. Defective, damaged, or incorrect items will be replaced or refunded at no cost, while change-of-mind returns may incur a restocking fee. Some items (custom, perishable, intimate goods, gift cards, software) are non-returnable. Refer to full policy here.

The SunGold Power 4000W 48V Split Phase Pure Sine Inverter Charger is a durable low-frequency inverter designed for off-grid homes, cabins, RVs, trailers, and small businesses. It provides split-phase 120/240V output, includes a 40A AC battery charger, and features an integrated transfer switch for seamless switching between shore power and battery power.

With 4kW continuous output and 12kW surge capacity, this inverter is ideal for powering essential appliances and tools in a reliable off-grid setup.

Key Features

  • All-in-one unit – inverter, 40A charger, and transfer switch

  • Split-phase 120V/240V output – supports U.S. residential loads

  • 4,000W continuous / 12,000W surge (20s) – runs appliances and tools, up to 16A output

  • AC charger with adjustable current – 0–100% selectable, multi-stage charging

  • Compatible with 9 battery types – LiFePO₄, lithium, AGM, gel, flooded, and custom settings

  • LCD display & remote control – for monitoring and configuration

  • Automatic Generator Start (AGS) support

  • Low idle consumption – 19W (power saver on), 48W (power saver off)

  • Fast transfer time (~10 ms) – ensures smooth power transition

Specifications

  • Continuous Output: 4,000W

  • Surge Power: 12,000W (20s)

  • Battery Voltage: 48V DC

  • AC Output: 120V & 240V split phase

  • AC Input Voltage: 240V

  • Charger Current: 40 ±5A

  • Transfer Time: 10 ms typical

  • Efficiency: >88%

  • Idle Consumption: 19W (saver on) / 48W (saver off)

  • Unit Size: 22 × 9.1 × 7.5 in

  • Unit Weight: 55 lbs (64 lbs shipping)

What’s Included

  • SunGold Power 4000W 48V Split Phase Inverter Charger

  • Remote Control

  • Battery Temperature Sensor (BTS)

  • English Manual

Warranty

  • 12–36 month limited warranty (depending on product line)

  • 30-day return policy – Sungold covers shipping if defective, damaged, or incorrect

  • Warranty applies only to the original purchaser; excludes misuse or unauthorized modification

FAQ

What’s the AC output amps?
16A total; at 120V split, each leg supports up to 2,000W.

What’s the maximum charging voltage?
62.8V (with overcharge shutdown protection).

Can it charge a Nissan Leaf battery bank?
Only if the total voltage does not exceed 48V and the proper selector switch is set per the manual.

User Manual

📑 Download the SunGold Power LFP Series Pure Sine Inverter/Charger User Manual (PDF)

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