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Salesman
Reviewed in Canada on January 18, 2025
February 20, 2024, I bought one. For some reason it did not hold the charge. After reporting it, the seller sent me a new one.January 2024, not even a year later, neither of these batteries charge properly. At best they only accept a max of 9W if i am lucky. 8W on average and sometimes 7W which takes forever to charge. It does not matter the source charging. Wall outlet, USB-C, car lighter socket, etc.At best 9w with the lighter socket, 8 with the wall outlet and power adapter provided with the battery and 7W with USB-C.This happened within the last 30 days as far as i can tell. I was even considering buying more but this was an eye opener for not to get another one.Terrible product. 100% disappointment.
Komorebi Tech
Reviewed in the United States on September 27, 2024
I got this to help power my 12v cooler during camping trips and it's worked great. For its size it packs a surprising amount of power, keeping the cooler running for around a day, depending on the ambient temperatures. I have a rotation of batteries that are on solar chargers when not in use, and wouldn't expect this little guy to last a full trip without charging. But for car rides or day trips it's the perfect size to allow the cooler to be wheeled around without spoiling the contents.
jim ryan
Reviewed in the United States on September 14, 2024
Good product. Works well with my portable refrigerator. It does the job.
Mark
Reviewed in the United States on September 12, 2024
I first got the fridge then added this battery for it. It charged using all the modes 12V DC lighter cord, AC Brick PS, and USB-C 65 watt. They all were able to run the fridge, and still charge the battery just a little slower. I am very happy I got this add on to the fridge bundle.
R. Smith
Reviewed in Canada on July 16, 2024
Not only will it power the fridge, it can recharge your phone or tablet.
CAH
Reviewed in the United States on December 11, 2024
I like the small size and weight. I hooked this unit up to my small F40 refrigerator (on eco mode at 35 degrees) and it kept the temperature for over 8 hours. It was at 60% of battery life when I went to bed. I was only expecting 5-6 hours based on the company’s and other reviewer’s experiences. I started using it at 1:15 pm and got up at 8:30 am. It had quit charging by then ,of course. I am impressed with the length of time it was able to charge the refrigerator. It’s pricey but well worth the money if it holds up over time (300 times according to company). DEFINITELY 5 ⭐️⭐️⭐️⭐️⭐️. Highly recommend.
Linda
Reviewed in the United States on November 26, 2024
This is just a portable power bank with a DC plug in. I expected a battery that actually fit inside the battery compartment on the RV fridge. I feel mislead.
Admiral MacK
Reviewed in the United States on January 24, 2024
I bought this product for its size and battery capacity. I only use it as a 24/7 dashcam power cell as an alternative to hardwiring a 12v to the car battery and risk draining it. It works very well with my particular setup. I have a three-in-one 12v splitter going into my car’s only 12v socket with on/off buttons on it. I have the battery’s car charger hooked up to there so i can easily charge the battery when the engine is on if needed. The battery pack lasts 20-30 hours on one charge with an average 4 watt draw. (Battery on-time is 9 hours exactly…it will turn off after that point no matter what it’s doing. Click button once to turn back on and you have another 9 hours of on-time.) During charging the interface end of the battery can become warmer than some may prefer but I have personally witnessed its temperature safety shutoff in action for both too cold and too hot. If in a room temperature or cooler environment, it will NOT overheat by just charging. As for high-demand draw from the battery, I have no complaints considering the size of the battery. It’s meant to be easily carried and stored.Things this can be used for:-Camping (phone charger, flashlight, short term heating/cooling appliances (less than 2 hours).-Alternative power source for charging/powering devices in a car-Good all-around backup battery if you need to recharge any usb/12v compatible devices repeatedly throughout the dayNot good for:-Laptops (it thinks the laptop is trying to charge the battery half the time in my experience)-refrigerators (under 3 hours of use even for my very small mini fridge)-out door use in warmer/hot climate (contextual: if you’re just charging phones or other USB devices, then no worries. Any draw above 30W will surely make it become too hot and shut down. Get yourself one with cooling fans, dedicated wall outlets, and 5 times the capacity. Always have more than you think you will need)Additional tips if you do buy it:-Charge with included cables, don’t bother using Type C, it’s too slow.-Fully drain and recharge at least once every 8-10 days for maintaining best battery life.-If kept car, be careful where you store it. I personally have wires going to/from the glovebox where it’s semi-permanently stored and have not experienced issues. Keep in a place not risky for spills or excessive high/low temps.-Do not charge battery until at room temp for battery life. Too hot and it might shut down, too cold and it wont charge correctly.Hope this was insightful to those who bother even reading this far.
T. Hui
Reviewed in Canada on August 22, 2023
The battery is very compact for the capacity it provides. It will be great if used inside the fridges with the compartment to hold it, or inside the passenger cabin of cars with air conditioning, or in open spaces not in direct sunlight during hot summer.Unfortunately for me, the back of an SUV in 40C summer temperatures was too much for the little battery with no active cooling to handle, and the charging shut down. To be fair, my other portable power station that costs three times as much and had fan cooling also experienced shutdown, but was able to sustain higher temperatures before charging shut down. So the compactness that’s such an asset in portability becomes a liability in extreme high temperatures.Originally I had some communication issues with the seller, but they quickly resolved it to my satisfaction. I would highly recommend this seller, and if you are not using this product in the extreme situation I explained, you will be very happy with this battery.
Argus
Reviewed in Canada on August 18, 2023
Did a 'dry run' on this battery pack prior to our next weekend camping trip. Pre-chilled our F40C4TMP 30 litre fridge (half full with beverages) to 4 degree Celsius and then hooked up the battery. Put the unit outside (~28 C weather) and mimicked a camping situation where we'd use the battery pack for 2 nights, 8 hours each (will run the fridge on our 12V 75aH RV battery during the days).After the first 8 hours, the battery read 57%. After the 2nd 8 hours, it read 14%. So this will easily have enough juice for 16 hours. Perfect for our use! Lastly, the battery arrived super fast via FedEx. Couldn't be happier!
K
Reviewed in the United States on July 31, 2023
Battery worked OK to power the fridge, but when recharging, the ADAPTER became too hot to touch, and with continued use would undoubtedly start a fire. I reached out to seller who responded suggesting it was normal for the BATTERY to get warm with charging-- oblivious to the actual issue stated.Update: After repeated communication, the seller agreed to send a replacement adapter, but then sent the an adapter for a refrigerator, vs. a battery pack- they sell both. Asking again for the right part. Will update if issue is solved.2nd Update: seller still clueless. Wants a picture of the issue. Doesn't get the difference between battery adapter and refrigerator adapter. Giving up and returning item. Unfortunate.
J Katz
Reviewed in the United States on July 11, 2023
The excellent F40C4TMP 220WH Battery is a powerful, compact, and easy-to-use power station. We have used it, with great results, to power the F40C4TMP Portable Refrigerator, and it keeps it at the set temperature for 6 hours or more. It has USB-A and USB-C ports to power up or recharge computers and other electronics when traveling in the car. The unit recharges via AC or DC power. The power station weighs just 3.3 pounds and is small enough to fit in any convenient spot in a vehicle. The LED light acts as a bright flashlight. It is an excellent full-featured product at a reasonable price.
DavidT
Reviewed in Canada on July 11, 2023
First time I’ve ever used a portable freezer and battery system and was extremely impressed with this battery. I’ve just got back from a 15 day island expedition and this battery was AWESOME! Charges multiple phones, portable speakers, gaming devices, also has a powerful flashlight that is handy! Charged it every other day off a generator and it kept everything up and running, as well has the power required to use on a refrigerator/freezer portable cooler. Love it glad I got it! Will be well used once back at home as well!
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