Kzreect Pure Sine Wave Inverter 350W

How to use it

At a campsite, in a parked vehicle, or during a brief outage, this inverter is meant to turn compatible Milwaukee 18V battery power into AC and USB charging for everyday electronics. It provides up to 350W of pure sine wave AC output, with two outlets sharing that limit, and also has USB-C and USB-A ports for smaller devices. The dual-battery setup can switch automatically between two compatible packs, which may help extend a session without stopping to swap batteries. The batteries are not included, so this makes most sense if you already own compatible packs or are prepared to source them separately.

For example, you could set it beside a laptop at a campsite, plug in through AC, and charge a phone over USB at the same time—while keeping the combined AC load within 350W. What makes this more useful than a basic battery adapter? The pure sine wave AC output is intended for sensitive electronics, and the built-in light adds a separate use during a roadside stop or power outage. It’s a great fit if you want one portable unit for modest AC power, USB charging, and emergency lighting.

Pros

• Two AC outlets provide up to 350W combined, rather than 350W per outlet.
• The dual-battery design automatically switches between two compatible batteries.
• USB-C1 supports up to 140W input and output, a second USB-C port provides 65W, alongside two 18W USB-A ports.
• The LED has three brightness levels plus Strobe and SOS modes.
• Overload, short-circuit, overheating, and over-discharge protection are built in, with an intelligent cooling fan.

The main tradeoff is practical: you need compatible 18V batteries, and the product recommends 4Ah or larger packs for best results. Also, AC and USB outputs are disabled while batteries are charging, so it cannot power connected devices and recharge its batteries at the same time. That matters if you were planning to leave it running as an uninterrupted power source.

Spec sheet

• Type: Portable pure sine wave inverter
• Battery compatibility: Milwaukee 18V battery packs, batteries not included
• AC output: Up to 350W combined across two outlets
• USB-C: One 140W PD3.1 input/output port and one 65W port
• USB-A: Two 18W ports
• Battery charging: USB-C1 input and 7A recharge mode
• Light: 600LM LED with three brightness levels, Strobe, and SOS
• Included accessory: 240W USB-C charging cable

Should you buy it?

This is a feature-rich alternative to a simple inverter that only provides AC power: it adds several USB charging options, automatic switching between two battery packs, and a built-in emergency light. Those extras suit camping, roadside use, or keeping a few modest-power devices available during an outage. But 350W is still the ceiling for AC devices, and both outlets share that limit, it is not a substitute for a higher-output power station if your setup needs more power. Better avoided if you need batteries included, simultaneous battery recharging and device output, or AC power above the stated combined limit. If your needs stay within those boundaries and you have compatible packs, its mix of outlets and lighting can make one portable unit do several jobs.