Nature Power Pure Sine Wave Solar Power Pack with Solar Panel — 500 Watts, Model# 40500

So far it works great. I've been using a 500 watt hot plate to cook and the battery drains about 40-50% after an hour of use.

I purchased several of these units to use as back up power during hurricane power outages. However, I found several other uses for these. For example, how to use a shop vac around the back of my house to vacuum up some water. Instead of running a long extension cord from the house I was able to use one of these units to power the shop vac and it did an excellent job. Another use is to charge your cell phone. According to what I’ve read, you can charge your phone approximately 30 times without recharging this pack. Another great use for this during a power outage. Lightweight and it comes with all the cables you need to charge from an AC outlet or from your car. It also comes with a solar panel, which allows you to charge it using the sun. All in all in excellent value!

Bought this on a special and wasn’t expecting much, but wow was I surprised . I have used this power pack on our small farm for everything from running a fan to charging batteries. We even used it to help power or camper in an emergency. These lithium battery power generators are very handy for portable operations that require quiet reliable power. We live in a rural area that frequently loses power and charging phones are a necessity. This will help keep us connected with clean power and will not mess up our phones. Highly recommend to anyone.

I bought this unit about 5 months ago and have used it to charge tractor batteries, tractor block heaters, rechargeable flashlights and phones/tablets. It is very convenient to use. Is it as nice as my EcoFlow R600? No - but it was a fraction of the cost and it has met my expectations.

I am very pleased with this product it does what I do with it now but the big reason I got this unit is for ice fishing and I will be putting it to the test on how long it will last on a charge

I've had this for awhile now. The first Power module didn't seem to work, but second worked after charging it with provided A/C adapter for about 8 hours. Note, the 10 watt panel that was included with it will not charge it up in any reasonable time period. I also have a 110 watt panel and the 110W did charge the second Power Pack properly. I used the direct connect feature. I tested usage with a filter/fan. The power pack seemed to provide sufficient energy and USB ports are useful for charging devices. I have not tested the 12 volt power adapter for the car.

This product comes with a 10 watt panel for hobbyist/emergency use. Maximum solar power input is limited to 200 watts of additional panels. Maximum open circuit voltage input is LIMITED to 26 volts, so this means that commercial solar panels will NOT work as they have a 36-48 volt open circuit voltage. Small 20 watt panels work just fine as add on's. BE VERY CAREFUL IF using the diagram or cables included to connect external panels unless you know how power polarity works. They provide a small pair of cables, that if used as is, will reverse connect the power input and probably blow a fuse. Secondary connector and cables must be used. NOTE: The units arrive with the batteries fully discharged. Perfect for a small emergency power source only, or small electronics like security cameras in remote locations. This is NOT a high power unit. Will NOT operate a microwave or refrigerator. Perfect for hobbyists/experimenters who know how electronics work. NOT suggested for anybody who is not intimately acquainted with MPPT/SOLAR.

this batter won't hold a charge

I’ve bought other products from this name brand that are great, however this one disappoints. Batterie does not hold up well, ac switch doesn’t always work, and my other solar panels error out when connected.

Got 4 of these units, NONE of them worked haven’t figured out the problem yet. Very disappointing! Northern tool usually has good products. DO NOT BUY THESE!!