Upgraded 7.5W-Solar-Battery-Trickle-Charger-Maintainer-12V Portable Waterproof Solar Panel Trickle Charging Kit for Car, Automotive, Motorcycle, Boat, Marine, RV,Trailer,Powersports, Snowmobile, etc.

I bought the 7.5W solar trickle charger by Powoxi back in November after parking my car up for storage for the winter. The car is currently in a place where I can't get power to it, so I thought I'd give this a try. In the box is everything you need, and it's simply plug and play. The solar panel is quite compact and offers a good length cable to get to the battery/12v socket. For me it sits ontop of a container exposed to the elements. Now 4 months down the line, I checked the car battery today and is 12.3V which is impressive. I didn't expect the battery to be doing too great, or that the solar panel would last being exposed. It's been buried under snow for weeks, continuously rain on, yet clearly it's still going. The solar panel has done 100% of the work at keeping the battery topped up, at no point has the engine been on or has it been conected to a main charger. This winter had quite minimal sunlight too so I'm quite impressed everything is fine. I'm unsure wether it still works in overcast conditions since I haven't been up to see the LED inidicator on the panel on a day where the sun hasn't been out. Currently at £39.99 this is a great price for what it does. The overall quality is great and obviously it can handle Scottish winter conditions with ease. Overall I highly recommend. Connect it up and it gets to work instantly!

Before heading off for a six-week trip over Christmas to visit friends and family in Australia and New Zealand, I realised I had a small problem — I’d be leaving my truck sitting idle for quite some time. Anyone who’s dealt with a flat battery after a long break knows how frustrating that can be, so I wanted a reliable way to keep the battery topped up while I was away. After some research, I decided on the Upgraded 7.5W Solar Battery Trickle Charger Maintainer – 12V Portable Waterproof Solar Panel Trickle Charging Kit. It looked like the perfect solution: simple, compact, and completely self-sustaining. A lot of online advice suggested just plugging a solar charger into the vehicle’s cigarette lighter socket, but when I checked with Ford, they advised against it — apparently, in my model, that port isn’t live when the ignition’s off. So instead, I followed their recommendation and connected the charger directly to the battery. The setup was straightforward. The kit comes with crocodile clips for easy connection and a generous cable length that easily reached from the battery to the inside of the truck. The included suction cups can be attached to either the front or back of the solar panel, so I mounted it neatly on the inside of the windscreen, where it could catch the light without being obtrusive. The cable is thin enough that the door seal closes perfectly around it, leaving a discreet and tidy setup. While I was away, I didn’t have to give it another thought. The solar trickle charger quietly did its job, keeping the battery topped up day after day. When I returned home six weeks later, I unclipped it, turned the key—and the truck started first time without so much as a flicker. No power loss, no sluggish start, no hassle. The build quality feels solid, and the performance exceeded my expectations. It’s weatherproof, easy to mount, and perfect for anyone who leaves their vehicle parked up for long periods—whether it’s a car, truck, camper, or boat. I’d just advise checking your specific vehicle setup before installing it, as not all models allow charging through the same method. Once you’ve got it right though, it’s brilliant. All in all, this solar trickle charger is one of those practical, inexpensive tools that just works. It’s saved me time, stress, and probably a few jump-starts down the line. Highly recommended for anyone who wants peace of mind while their vehicle’s sitting idle.

Seems good quality, apart from connectors which are very poor & came apart on first use!!

The best thing I ever bought. Our farm forklift has no charging of battery due to cost of parts, we leave this charger permanently connected and whenever we go startup, the battery is always good, even charges in shade with a little sunshine, and on days when it is cloudy but bright. The charge light on the charger goes green to show it's putting out a charge.

I had a diesel car that was not being used and was parked on the driveway. I connected the battery to this solar panel. The car started right up after 6 and 9 months. Does a good job of keeping the battery charged up. Would buy again. Very useful if a car is going to be unused. Put the panel on the roof.

Seems pretty well made and has been put straight to work, it is charging well so far

UPDATED!! ORIGINAL POST: Buyer beware! I bought this on the 16th September 2025 - today is the 28th October. I bought this to replace another popular 'recovery company' brand that I'd had for years - and found out today that rather than keeping my little 1.2L Yaris battery topped up, it was DRAINING my brand new car battery! And surprise, surprise the 1 month return window is closed. Enough said. UPDATE 5/11/25!!!!! : This Manufacturer now gets 10/10 from me. Upon seeing my review, the Company got in touch and asked for details of the faults, video and pictures. In short order, and many repeated explanations by me, I was immediately sent a free replacement product in 2 days. They were unable to test it before sending it out, but I can confirm the Trickle Charger is now working as described and is no longer draining my brand new battery. Review updated to 4 stars - I was lucky and had a popular UK recovery service on speed dial (and a very kind mechanic who went above & beyond by testing the Trickle Charger as well as my dead battery!) - elderly customers may not be so lucky. Their Quality Control at manufacture level needs to be better - but 4* given for after care, attentive and helpful Customer Service (who actually read abs resolve these reviews)! Bravo.

Brilliant, after years of charging old tractor battery, it works to perfection.

I recently purchased the POWOXI Solar Battery Charger for my car, and it has been a fantastic investment! The 7.5W solar panel is highly efficient and does an excellent job of maintaining my car battery's charge, even in less-than-ideal weather conditions. The charger is easy to set up and comes with all the necessary accessories, including suction cups and a cigarette lighter adapter. The build quality is impressive, with a durable and weather-resistant design that ensures longevity. I love that it's environmentally friendly, harnessing solar energy to keep my battery charged. It's perfect for those who don't drive their vehicles daily or for extended trips where access to a power source may be limited. Overall, the POWOXI Solar Battery Charger has exceeded my expectations in terms of performance and reliability. It's a great solution for keeping your car battery maintained and ready to go. Highly recommend it!

Works well

I read through the reviews before purchasing, and knew about the quality concerns with the alligator clips ahead of time. I ordered one for my Dad's 2001 Toyota Avalon back in really December, which was parked in his driveway in Delaware and barely used due to medical issues and having a newer vehicle available... but he wanted me to start it once in a while to keep the battery charged while he was in the hospital for an extended stay. The cold temps were depleting the battery, and this was just enough to keep it topped off on charge so that it didn't need a jump start. I liked it so much that I ordered a 2nd one for my 95 Grand Cherokee back home in Arizona, which wasn't being used at all while I was in Delaware helping my sister care for my parents and keeping up with their house. When I went to install the 2nd one on the ZJ, the battery terminal on the red top Optima battery was a bit bigger than the Avalon's regular battery and the alligator clip broke when trying to get it on the positive terminal. I knew when I was doing it that trying to get it on the larger terminal and squeezing the clip would stress the plastic and spring, but I did it anyways... and it broke in half. I tried to put it back together, but that obviously wasn't working - so I reached out to the company and explained what happened offering to purchase a new set of connectors. Their Customer Service was stellar, and in top of the immediate apology for my dilemma they sent out a replacement set of connectors which were received that same week. Amazing response time & quick shipment of the replacement negated any complaint that I had with the product - and installing the new alligator clips on the ZJ this time with a bit more delicacy and finesse so as to not over flex the spring or stress the plastic on the larger terminal. I returned back to Delaware after being gone for 5 weeks. The original unit was still with the green light, parked facing to the sun attached to the outside of the windshield - which it had direct sunlight from about 9am to 4pm daily. The old Avalon fired right up like the battery was brand new! I spent a month in Delaware, and after getting back to Arizona I tested the ZJ - also parked facing the sun with the solar charger attached to the outsiden of the windshield and getting direct sunlight from 7am to 5pm. The 5.2 liter V8 fired right up with no lag like it was still being driven daily. I'm happy with the product quality and performance, and highly recommend it for anyone who has a secondary vehicle that doesn't get a lot of use to avoid the frustration of discharge and having to jump start.

Fast Shipping, good quality. Does the job but I might buy the next one up for a few extra watts.

商品が届いてからバッテリーに直接繋いで１週間後にバッテリー状態を確認したが充電はされていなかった。２週間後も充電されてなかった。バッテリーの消費が多いから充電が追い付かないのか原因は分からないがソーラーパネルの電圧を計ると13.5ｖが表示された。 説明書が全て英語なので翻訳機能を使い読んだが、使い方は合っているので、また１週間様子見とするので星３つとします。 その後、確認をしたら充電されていた！太陽の方向に向けたのが良かったのかのかも？