POWOXI 12V Solar Car Battery Charger

Curated from 131 real Reddit conversations

Refreshed on: February 6, 2025

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POWOXI 12V Solar Car Battery Charger

Brand: POWOXI
Price: $59
Snoop Score:
6.7
Sentiment
2.5
Popularity
8.9
Technical
7.4
Buy on Amazon for $59See All Solar Battery Chargers & Charging Kits Reviews
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Snoop's Take

The POWOXI 12V Solar Car Battery Charger is designed to maintain and charge various 12V batteries using solar energy. With its innovative 15W MPPT technology, this charger ensures efficient energy conversion, maximizing performance even in less-than-ideal sunlight conditions. Consumer feedback highlights the charger’s impressive energy efficiency, with users reporting, "Gets about 10 miles of charge per day from solar while the car sits in the parking lot at work." However, challenges persist, including complex setup requirements and concerns regarding the high cost relative to energy savings, as one user noted, "If the amortized cost of the system is $1/day to get $0.10/day worth of electricity, you're throwing money away." Overall, while the POWOXI solar charger offers excellent efficiency and battery protection features, potential buyers should carefully consider the setup complexity and cost-effectiveness before purchasing. It is recommended for those who prioritize solar efficiency and are willing to navigate the installation process.

Not for you? Check out our other rated Solar Battery Chargers & Charging Kits

Gets about 10 miles of charge per day from solar while the car sits in the parking lot at work; plans further improvements: aiming for a goal of adding 20–25 miles per day.

Positive Feedback

everything about this idea was half baked.

Negative Feedback
Product
6.7
POWOXI 12V Solar Car Battery Charger
Buy on Amazon for $59
Vehicle Battery Maintenance
9 / 10
Marine and RV Applications
7 / 10
Off-Grid Power
7 / 10
Battery Preservation
6 / 10
See how this compares to all Solar Battery Chargers & Charging Kits

What it does well!

Key strengths users can’t stop talking about.
High energy efficiency with MPPT technology
“Gets about 10 miles of charge per day from solar while the car sits in the parking lot at work; plans further improvements: aiming for a goal of adding 20–25 miles per day.”➕

Where it needs some work!

Areas to watch—feedback on possible improvements.
Complex setup and maintenance required
“everything about this idea was half baked.”➕
High cost compared to utility energy savings
“If the amortized cost of the system is $1/day to get $0.10/day worth of electricity, you're throwing money away.”➕
Heavy batteries may reduce efficiency
“That's one of the many criticisms people are pointing out, poor choice in batteries.”➕

Compare On All Talked About Dimensions

Product NameImagePriceScoreCompareSee DetailsBuy Now
ZOUPW 30W 12V Solar Battery ChargerZOUPW 30W 12V Solar Battery Charger$69
8.6
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POWOXI Upgraded 7.5W Solar Battery Trickle ChargerPOWOXI Upgraded 7.5W Solar Battery Trickle Charger$39
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SUNER POWER Waterproof 12W 12V Solar Battery ChargerSUNER POWER Waterproof 12W 12V Solar Battery Charger$50
7.3
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SUNER POWER 20W 12V Solar Battery Charger & MaintainerSUNER POWER 20W 12V Solar Battery Charger & Maintainer$85
7.3
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Sun Energise 10W 12V Solar Battery Charger Maintainer PROSun Energise 10W 12V Solar Battery Charger Maintainer PRO$55
7.3
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SUNER POWER 30W 12V Solar Battery Charger MaintainerSUNER POWER 30W 12V Solar Battery Charger Maintainer$89
6.9
DetailsBuy
POWOXI 12V Solar Car Battery ChargerPOWOXI 12V Solar Car Battery Charger$59
6.7
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Sunway Solar Car Battery Trickle Charger & MaintainerSunway Solar Car Battery Trickle Charger & Maintainer$22
6.6
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SUNAPEX 12V Solar Battery Charge KitSUNAPEX 12V Solar Battery Charge Kit$21
6.4
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SUNAPEX 20W 12V Solar Panel Battery Charger MaintainerSUNAPEX 20W 12V Solar Panel Battery Charger Maintainer$49
6.1
DetailsBuy
Sun Energise 25W 12V Solar Powered Battery Charger & MaintainerSun Energise 25W 12V Solar Powered Battery Charger & Maintainer$89
4.4
DetailsBuy
Renogy 10W Solar Trickle Charger Portable Battery MaintainerRenogy 10W Solar Trickle Charger Portable Battery Maintainer$25
4.2
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Topsolar 10 Watt 12 Volt Solar Trickle ChargerTopsolar 10 Watt 12 Volt Solar Trickle Charger$19
3.9
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Saillong 10W 12V Solar Car Battery Charger MaintainerSaillong 10W 12V Solar Car Battery Charger Maintainer$19
3.9
DetailsBuy
Sunway Solar 16FT Battery Charger Extension Cable AdapterSunway Solar 16FT Battery Charger Extension Cable Adapter$16
2.4
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FlexSolar 20W 12V Solar Panel Battery ChargerFlexSolar 20W 12V Solar Panel Battery Charger$49
2.3
DetailsBuy

Core Power Plays

The specs and strengths that make it shine.
Discussion on efficiency of solar panels
“And the efficiency of a solar panel is like 15%-20%. So he is taking an 80% loss.”➕
“This off-grid cabin has an energy wheel to help charge the solar-powered battery.”➕
“I feel like the energy wheel would contribute an almost insignificant amount of energy to the battery.”➕
“To match my home solar install I’d need 25 pro cyclists, they’d probably object to being put on the roof.”➕
Discussion on overall efficiency of solar panels
“It would be a very big deal if someone discovered a way to improve it more than a few percent though...not likely.”➕
“Even if solar panels were 100% efficient you wouldn't be able to get more than something like 20 miles per day from the sun.”➕
“Complexity in cars = more maintenance.”➕
Speculation on future solar technology improvements
“Is it me or is that terrible? In the future can we make solar panels more efficient/gather more electricity or it will be the other way around, things will consume less?”➕
“Anyway, at least there's some small cause for optimism that there may be even more gains to be had in the coming decades.”➕

Hidden Hero Hacks

Unexpected tricks and side‑door uses you’ll love.
Humorous take on charging methods
“He forgot to plug the charger.”➕
“Does he also plug a power strip into itself, and wonder why the other items plugged in won’t turn on?”➕
“Hey McFly you bojo! Hoverboards don’t work on water. Unless you’ve got POWERRR.”➕
“Yeah, Singapore Airport had pedal powered phone chargers for people to use and after 10 minutes of furious pedaling, you might get your phone up to 4%.”➕
Light-hearted competition between solar and phone battery
“It's like a race between solar and phone battery. So who won?”➕
“A bigger one would be pretty good for exercise though, and generate a little energy as a bonus.”➕
“I'd get one just to lose some weight and power my house.”➕
“Thank you for letting all of us know. What did you pay for the solar panel/charger?”➕

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’
Speculation on the student's intentions
“Hijacking to ask a stupid question: how do we know the student wants to charge his phone later?”➕
“Gives me just that little bit of extra peace of mind.”➕

Cautionary Callouts

Know the pitfalls before they catch you off guard.
Humorous take on solar panel efficiency vs. nature
“so SUCK IT NATURE”➕

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