70Mai Tera 1000 Portable Power Station reviewed in 2025

Sleek and Strong But Not So Portable Power Station

The 70mai Tera 1000 arrives to impress. While the name is not readily recognizable, when the power station and solar panels arrived, any misgivings we had about being a cheap import disappeared.

The packaging was beautiful and secure, and although we did struggle with the weight and getting the power station up the stairs and out of the box, our first impression of the Tera 1000 was that it had a sleek, nice looking design, and we’d be happy having it around the house or car.

Ease of Use

Once you have the 70mai Tera 1000 in the right spot then it is very easy to use. The hardest part of using this power station is going to be moving it. It is the lightest mid-range power station on our list, so at under 30 lbs it is not the heavy lift of the others, and it may be a good workout should you want to move it around often.

Otherwise, the Tera 1000 is designed for you not to worry too much about while using it. There are plenty of safety features to make sure it does not overheat or that it automatically shuts off if the power output gets overloaded.

With 1200 watts of continuous usage, several electronics and a fridge can run simultaneously. The 2400W surge will provide only a couple of minutes for a kettle before shutting off–the equivalent of resetting a fuse. (A low-wattage kettle is always smarter for more frequent use).

There is a clear, easy to read screen telling you the percentage of battery, the watt output or input, and the time for either the battery to run out or recharge. There are buttons to help you toggle through the settings should you want to charge the power station quickly or save your outlet power and charge the station longer – say overnight. You can adjust the AC voltage and hertz if you are using international electronics.

For DC power, you can have a delayed turn on. It is unfortunate this is only an option for DC and not AC as well. We found this useful for our car fridge at night. We knew the fridge was insulated enough to leave the portable power station off for a few hours, so at bedtime, we turned off the power station with the fridge plugged in with DC car plug and set up the Tera 1000 to turn on the DC outlet again after 3.5 hours.

The 70mai Tera 1000 has a good amount of ports, though not as many as our favorite mid-range unit, the Anker 757 Powerhouse. We actually used a multiple port plug to be able to charge our work devices when testing its capabilities of off grid work.

Battery Capacity

The 70mai Tera 1000 has a battery capacity of about 1043 Wh. This is enough to run a home office – a laptop, a monitor, a few cell phones, a tablet, headphones, and even a drone and camera battery – for days. We had this set up for over 36 hours. This makes it perfect for off grid work.

When considering its capacity for RVing or in a house during a power outage, you’ll have to be a bit more careful about your usage, you won’t simply be able to plug in everything you want and leave it.

It has the capacity to run a small fridge for about half a day. It can handle small appliances like microwaves, blenders, and even a toaster. Fans and lights could also be run for a decent amount of time. CPAP machines could only make it one night on a full charge, though.

Charging

So that brings us to charging. How good is the 70mai Tera 1000 at recharging?

From an AC outlet, it charges at the pace to be expected of a unit of this size and in this price range. With the fast charging on, you’ll have 80% of the battery charged in about 1 hour and a full charge in 2. In our testing, it did take slightly longer to reach the 80% charge with the fast charging and full charge by 2 hours. We were impressed, especially since on the slow charge setting, we were fully charged after 5 hours.

Unfortunately, car charging was a little slow, but given DC input capacity it was what to be expected. We took it out to see how we’d do on a car camping trip after using the battery all night with a CPAP. With 65W input, the dispaly gave us close to 16 hours of charging time to go from 15% to full.

With 2 of 70mai’s solar panels, charging fared slightly better. Each solar panel produced right around 30w in the morning sun, and said it would take under 30 hours to reach full charge. This was lower than expected for the 110 W rated power in the 70mai portable solar panel specs, though we would expect the output to increase as the day wore on.

On a full sun day, you would get optimal power for a few hours, but the variability of the power of the sun at different times of day and the direction of the sun affecting the power output makes it seem the panels would not be enough to fully charge the Tera 1000 even with a full day charging.

Neither of these options seems manageable to be able to easily recharge the Tera 1000 portable power station from 0 to then be usable again on a multi-day off grid trip. We see definite benefits to having it in an RV or on a weekend off grid, we just think you have to manage the usage and solar panel recharging carefully and not expect too much.

For RVing, you can charge this portable power station from a gas generator, so it could be a supplement to using the gas generator less.

Output Power and Efficiency

How can we use our portable power station output power efficiently? Given the issues with being able to charge the 70mai Tera 1000 off grid, let’s see how efficient the output power can be.

With the clear and what we found to be an accurate display, plus the added Bluetooth app, it is quite easy to keep an eye on the power usage of the Tera 1000. It manages low wattage electronics very well. As we stated above, using it off grid to charge regular office tech worked for days.

It also seems like a great addition to a car glamping trip. You could throw a mini kitchen in your car, including a car fridge, toaster, coffee machine, and blender, and easily whip up smoothies, toast, and coffee for breakfast without having to worry about starting a campfire or setting up a camping stove.

You could bring your air mattresses and easily inflate them with the Tera 1000 and have a small fan that runs at night while you sleep if the weather is hot.  The 70mai Tera 1000 can handle either short term high wattage use (like a toaster) or longer hour low wattage use easily over the course of 2-3 days. If you need it for a CPAP, though, you should definitely test how many nights of use you get out of it before you go.

The DC ports have pass through charging which helps. You can charge your phones and laptop while the Tera 1000 is charging in the car or with solar panels. And there is an auto turn off feature, so there is no power wasted in stand-by mode.

Build and Design

This is the area where we give the Tera 1000 most of its high marks. The look of the power station is slick and attractive. The outer casing is sturdy and this power station has a steel chassis making it drop resistant for 1-2 feet. We didn’t test this but the build felt solid.

You notice on the build the large fan. The Tera 1000 was designed with excellent heat control that works so well even when working at full capacity this is the quietest portable power station we tested. There is an aluminum heat sink in the top of the unit, 3 ventilation areas inside, followed by the large fan, which is only for backup cooling.

They have also included their patented inverter keeping the volts stable even with high wattage usage.

The one part of the build we wish was different, though, are the lithium ion batteries used in the Tera 1000. Lithium iron phosphate (LiFePO4) batteries offer less chance of combustion and overall longer battery life.

The battery system in the Tera 1000 uses a battery management system coded to protect against over charge, over discharge, and overheating. And 70mai makes the claim the Tera 1000 batteries will last around 5 years (1000 cycles with the batteries at full capacity, then after 1000 cycles working at 70% SOC – state of charge) and can stay working at extreme temperatures, from 14 – 113°F.

The 70mai Tera 1000 also has a light with an SOS mode.

Price and Value

The 70mai Tera 1000 is priced in line with other portable power stations of this size. And at the time of publishing, Amazon was offering a great discount on the Tera 1000. At the discount price you cannot find a better deal than the Tera 1000. At the regular price, the only problem is some of the competitors just have better features. You can find models with more output ports and using LiFePO4 batteries which ensure double the cycle time and lifespan (Anker 757 Powerhouse).

We know that the 70mai Tera 1000 does offer superb safety features with its patented inverter and operates the most quietly with its superb heat management system. The design features it offers, including an advanced battery management system and steel chassis, are unique features that do outperform some of the other 1000Wh power stations at this price point. We would choose it over the Geneverse Homepower One Pro.

Do We Recommend It?

We come in offering the 70mai Tera 1000 as a second choice pick of the 1000 Wh portable power stations we reviewed. We can’t recommend it over our favorite, the Anker 757 Powerhouse, but we were impressed with its safe ease of use, and especially with its super quiet running, even at max output.