---
product_id: 98021149
title: "MAKOM 400Wh Power Source Supply Generator 300W Pure Sine Wave, Lithium Ion Charged by Solar Panel/AC Outlet/Cars"
brand: "makom"
price: "R$1110"
currency: BRL
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.br/products/98021149-makom-400wh-power-source-supply-generator-300w-pure-sine-wave
store_origin: BR
region: Brazil
---

# MAKOM 400Wh Power Source Supply Generator 300W Pure Sine Wave, Lithium Ion Charged by Solar Panel/AC Outlet/Cars

**Brand:** makom
**Price:** R$1110
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** MAKOM 400Wh Power Source Supply Generator 300W Pure Sine Wave, Lithium Ion Charged by Solar Panel/AC Outlet/Cars by makom
- **How much does it cost?** R$1110 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/98021149-makom-400wh-power-source-supply-generator-300w-pure-sine-wave)

## Best For

- makom enthusiasts

## Why This Product

- Trusted makom brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Portable generators, power supplies, and power stations provide power for your equipment and portable electronics, making them ideal for portable energy storage systems that are easy to move and use. It makes your camping, trailing and other mobile activities more comfortable, and in an emergency, it can provide you with critical backup power, staying powered and entertained anytime, anywhere! Features: 3 ways charging refuels this generator by DC power from a 12V/24V car, AC power from home wall outlet and from solar power panelContinuous 400W, 300W surge pure sine AC inverters for home electronics charging with low losses/2 DC Ports for lighting/4 USB ports to charge electronic devices/1 cigarette lighter socket for mini fridge/air compressor/1 jump starter port for 12V 4L gas carComes with 3 buttons with lights indicator and 1 big LCD screen to display the battery consumption, charge and discharge status, presses the exact buttons to change the different ways of power supplyMulti-functions such as Power Small household Appliance, Car Jump Start, Power your Laptops, Smartphone, LED Bulb, Fans, etc. It is really a good power companion for Home Use, Camping, Travel, Hunting, Fishing, Farm or Job SitesFeatures an easy to carry handle, an aluminum alloy shell and built in input/output ports with sturdy plastic make it safer and smoother to runSpecifications: Battery Power: 400Wh lithium ion batteryInput Charge: 14V-40VMax Wall Charger: 60WSolar Charge Power: 120WRated Output: 600W peak currentBattery Voltage: 9V-12. 6VUSB Port: (2)5V2. 1A & (2)5V1ADC 12. 6V Car Port: 120WStarting Current: 200A-400AOverall Dimension: 5. 8"(W) x 9. 1"(L) x 9. 3"(H)Package Includes: Power GeneratorAC Wall ChargerCar Charging CableSolar Charging CableJump Starter Alligator Clip CableManual*Solar Panel No Included*

## Features

- About this item
- 3 ways charging refuels this generator by DC power from a 12V/24V car, AC power from home wall outlet and from solar power panel     Continuous 400W, 300W surge pure sine AC inverters for home electronics charging with low losses/2 DC Ports for lighting/4 USB ports to charge electronic devices/1 cigarette lighter socket for mini fridge/air compressor/1 jump starter port for 12V 4L gas car     Comes with 3 buttons with lights indicator and 1 big LCD screen to display the battery consumption, charge and discharge status, presses the exact buttons to change the different ways of power supply     Multi-functions such as Power Small household Appliance, Car Jump Start, Power your Laptops, Smartphone, LED Bulb, Fans, etc. It is really a good power companion for Home Use, Camping, Travel, Hunting, Fishing, Farm or Job Sites     Features an easy to carry handle, an aluminum alloy shell and built in input/output ports with sturdy plastic make it safer and smoother to run

## Images

![MAKOM 400Wh Power Source Supply Generator 300W Pure Sine Wave, Lithium Ion Charged by Solar Panel/AC Outlet/Cars - Image 1](https://m.media-amazon.com/images/I/61khjNyJ5SL.jpg)
![MAKOM 400Wh Power Source Supply Generator 300W Pure Sine Wave, Lithium Ion Charged by Solar Panel/AC Outlet/Cars - Image 2](https://m.media-amazon.com/images/I/718ITJoH5DL.jpg)
![MAKOM 400Wh Power Source Supply Generator 300W Pure Sine Wave, Lithium Ion Charged by Solar Panel/AC Outlet/Cars - Image 3](https://m.media-amazon.com/images/I/81huYvdM+bL.jpg)
![MAKOM 400Wh Power Source Supply Generator 300W Pure Sine Wave, Lithium Ion Charged by Solar Panel/AC Outlet/Cars - Image 4](https://m.media-amazon.com/images/I/81r4c51tidL.jpg)
![MAKOM 400Wh Power Source Supply Generator 300W Pure Sine Wave, Lithium Ion Charged by Solar Panel/AC Outlet/Cars - Image 5](https://m.media-amazon.com/images/I/71Rju8--OSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    No Complaints Here So Far
  

*by U***6 on Reviewed in the United States on March 6, 2019*

Packed very well and priced lower than similar units from other sellers. All neccesary cords/adaptors included. 2 year warranty. 11.1V36AH lithium ion battery - can be discharged to 80% before requiring recharge & unit will automatically shut off if battery capacity is less than 10%. As far as maintenance, it must be fully recharged every 3 months unless the system automatically shuts down because of low battery capacity, then it needs to be recharged within 2 months.Just a note: car with a 12-volt starting battery can't charge the system FULLY but a car with a 24 volt battery can. Also, as far as emergency jump start, the engine must be less than 4L. Also, off-grid in Sub-Zero conditions, you can drain the power from the unit but not charge it or the battery will be damaged.Hope this helps someone else considering this unit. Overall, I think it will be pretty good.

### ⭐⭐⭐⭐⭐ 







  
  
    Great for running a CPAP for 5-6 days! Great for camping and power outages!
  

*by G***3 on Reviewed in the United States on May 22, 2019*

I’m writing this review to help others make the right decision for a portable battery power unit to power their CPAP machine while in a place where power is unavailable (dry camping, power outages, etc.). I took a chance when I bought this unit with, at the time, had only one review. So here’s the verdict, I have a ResMed airsense 10 with a water humidifier and a heated tube, and an DC adapter with a cigarette plug attachment to power the ResMed using DC power plug located on the power unit (you can find these DC plugs on CPAP supply websites, they are a bit pricey but worth it). After doing a lot of research, I was looking for something to last 5-6 days before recharging. To achieve this, I purchased the Makom battery unit because of the price (I must have got it on sale because it was the least expensive that I found on Amazon with those specifications). Other brands claim to work for multiple nights running a CPAP. To get the maximum out of this unit, I turn off the humidifier, the heated tubing, and put the CPAP in airplane mode before plugging this into the power supply, I was able to get 5 full night (7-8 hours) of sleep and it still had 2 bars left on it. It might be possible to get another night out of it but didn’t want to risk it because I wear a full mask and don’t want the feeling of suffocating if the battery unit becomes depleted.Here's my brief review the Makom 400 Wh power unit. The packaging is very well done, with lots of foam padding fitted around the unit. Right out of the box, the unit is handsome and looks a feels sturdy and stable. It come charged up half way (in the instructions, it recommends to fully charge the unit before using. from a half charge, it took 2-3 hours to full). The LCD screen is easy to read and show what features are active when selected as well as showing you the Wattage being used. There are 3 buttons next to the LCD screen (Power button, DC on and AC on) to power on or to activate AC/DC power you have to hold down the button for 2-3 seconds, a green LED light will come on and stay on when the selection is made. When I drained the battery to 2 bars, it took about 5 hours to recharge it. I will add to this review later when I hook it up to solar and recharging from the car, I haven't done that yet.This unit works great so far and is easy to use. I may update this review after using it for a while but so far so good!So here’s an update from my camping trip using my CPAP machine with the Makom 400Wh power supply generator. This is more of a recommendation to CPAP users sleeping in tent or a pop up camper and camping in the mountains. My first night, it was so cold that it was causing bad condensation in my mask and tubing which forced me to turn on the heater on my tubing. This of course used up the power in the battery to one bar almost depleting the battery after one night (thank god I had a backup battery). To solve this problem, I placed the tubing, mask and CPAP machine under a blanket to which I was able to use my machine for one more night using my backup battery and not having the condensation problem like the previous night. My next camping trip will be in a much warmer climate so I’m sure the battery will last as long as discibed in the earlier review. I’ll update this later if necessary.

### ⭐⭐⭐⭐⭐ 







  
  
    Best in class
  

*by T***1 on Reviewed in the United States on May 22, 2019*

Nice little battery, tested on first charge getting 3.5 hours on a 100w lamp, next charges should be better.  Still probably the best in this category.  If you need a lot more than just charging a laptop you'll need to look into very heavy less portable options which are another few hundred bucks at least.

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---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-05*