Power Booster Accessory

- I recently purchased the Tempest Power Booster Accessory, and the entire experience exceeded my expectations. The installation was straightforward and easy to complete. After installation, my Tempest system went from showing a red status indicator to green within just a few hours, demonstrating a noticeable improvement in performance.
- What impressed me most was the proactive customer service from the Tempest team. They identified the power drop-off issue with my station and reached out to me directly, offering a discounted purchase option for the Power Booster. That level of customer support and monitoring shows a genuine commitment to helping customers get the best performance from their equipment.
- My setup is relatively simple, with the Tempest mounted on my shed and a convenient power source available inside the shed. I had read some reviews mentioning concerns about the length of the connection cable, but in my case, the cable length met approximately 80% of my needs and was more than adequate for my installation.
- Overall, I'm very pleased with both the product and the company's customer-focused approach. If you're experiencing power-related issues with your Tempest station and have a nearby power source, I highly recommend the Power Booster accessory.

Pros:
- Easy, straightforward installation
- Improved station power performance
- Fast transition from red to green status
- Proactive and responsive customer service
- Discounted upgrade offer from the company

Recommendation: A worthwhile investment for Tempest owners looking to improve reliability and long-term performance.

Working good. Would be nice to have a shorter cable (3 feet) for a remote battery only location.

I only get two hours of useful sun light most days. The battery was going in to low battery mode. The booster works great. I would like to make a suggestion. The ability to use a shorter cat 6 cable where applicable.
Thank you.

Easy to install and is keeping my Tempest working on short and snowy winter days. Only minor gripe is the cable length: 15 feet can be way too long when the Tempest and battery box are on the same pole. Wish there were shorter cable options, a way to cut the cable to length, or even integrated cable management.

The Tempest Weatherflow made it through the first few winters operating on its internal batteries and solar power alone. Then, last February (2025), I started receiving emails that the Weatherflow was offline. A little research indicated that low internal battery voltage (< 2.11 VDC) was the root cause.
Luckily Tempest had the perfect solution.
I mounted the PBA inside a weather proof box obtained from HomeDepot. The box is mounted to a scrap of Trex Trim board which is attached to a garden fence post.
I could have tapped into the 12 VAC landscape circuir that runs along the base of the fence but opted to use AA lithium batteries instead. The Weatherflow internal batteries charged to full (~2.6 VDC) after about 5 hours before dropping off and remaining constant at 2.57 VDC.
The only thing that I'd like to see different is less cable between PBA and the weather station.

Works great, good size and easy to mount. It would be nice to have options of shorter cable length; excess cable is exposed to the elements.

I followed the directions exactly to charge my Tempest with batteries. After one week, the battery voltage has increased from 2.30 all the way up to 2.32. Still in ECO mode so I’m not sure what the point is. However, they got more money from me so maybe that is the point. The tempest was sold as a solar charging device (has been replaced once for free) but I think it was oversold as was this battery charger.

It’s a great idea and my sensor wasn’t charging without it while the sun is in the south sky and a 6 floor office building is to the south of my patio. My criticism is this, why is it not in a weatherproof box? If you’re going to mount it on the pole, which isn’t a good idea anyway because wind can catch it and cause vibration that impacts readings, it’s obviously out in the sun, rain, etc. Fortunately I found a weatherproof box on Amazon that holds all the excess flat cord rolled up in the bottom of the box and the sensor unit sits on top of the cord. You’re missing an opportunity to provide a weatherproof case solution.

Had a two year old tempest that was going off line after several days with little or no sun in an unobstructed location up on my roof. Added the power supply unit with a connection to 120v and ran the wire (a very generous length and more than I needed), and everything snapped together. Not as convenient as having the promise of a wire free unit, but this is what I need for not having gaps in my weather data for reporting and use. Took off one star since this is probably needed when you buy the wx station.

During summer I have plenty of sunlight but winter the sun is lower in sky behind tree line. This power booster is working great and keeping my tempest recording weather stats. Only 2 weeks sofar, but doing great. Will see how long a full battery will last for an alabama winter.

Works great right out of the box. Solved the low sunlight power problem for me.

My property is surrounded by tall trees. Beginning in October every year my Tempest does not collect enough solar energy to maintain itself. The power booster saved the day.

Our Tempest quit working. We thought it was in the wrong place, so we moved it and made sure it got a lot of dun. Still didn't work. Tempest folks assured me it would work with the booster, and it works great!!

My Tempest solar batteries were no longer making it through cloudy days. I thought about getting a new one and then I got the offer for this battery powered assist, and it has solved the problem.

Missing power jack emailed tech support no response

Ordered it after having 7 days of clouds and rain and the battery ran down on my Tempest.

The system works as described, but I would like to see a water resistant system. I had to make a protective cover for it using a plastic container.

I would have to think that on the majority of the systems, they are outside and subject to rain and snow. Not making the unit waterproof would have been what I would have expected from a company that is trying to show it's leadership in the development of state of the art Weather Station.

Got my Tempest up and running again. Our backyard has very tall pines so even in the sunniest spot it wasn’t getting enough solar. Set it up with batteries and we’re back in business. Appreciated the inclusion of the correct sized zip ties to attach to the mount pole. Didn’t need any extra supplies and my husband and I had it up and functioning in 5 minutes or less.

Installed without a problem.

Due to trees blocking the sun most of the time the power Booster keeps the power and with batteries when the power goes out it will keep the tempest running smooth,

Ease of installation. Security of always having power. One suggestion is to build the power booster so it is integral to the overall Tempest system. This would make installation even more easy and would give the entire system a neater look.

I had to restart my tempest weather station as it lost the signal to my hub. I needed to remove it from it's base, turn it off, then back on. I had seen that a power booster was available from Tempest and it was inexpensive as well. I figured as long as I was up on a ladder I might as well add the booster. My station is five years old and I'm not sure how long the batteries will last. Since the upgrade, I have had 2.77 volts. Nice! It came with a power battery adapter, a nice long cord, zip-ties, and a 120 volt power supply. It took about 30 minutes to install including drilling a hole to bring the unit into my shed for electricity. I love it!

It is impractical to run an extension cord across my yard to power the unit. I can move it closer to the A-C source but then I loose the open area needed for the unit to work properly. How long will the battery pack last ?

Currently using it for battery backup only, so have not had an opportunity to determine if it's helping or not! Solar charging was stabilized before installing.

Works just as it was expected and that is excellent. Just wasn't getting enough sun to keep charged on a cloudy day.

If you live in the north east this is not an option. The weather station arrives needing a battery charge and no way to charge it. Additionally
the is insufficient sunlight to charge it. I will be mounting the battery pack in a weather tight electrical box. The station finally works as it should.