AI Supermarket Smart USB Charger for Lithium Batteries: Multi-slot charging
Available Options
Ever found yourself juggling dead batteries like a circus act? This smart USB charger is here to save the day, especially if you're dealing with those finicky 18650 lithium types. Imagine charging not one, not two, but multiple batteries at once—thanks to its multi-slot design. No more waiting around; it's like a pit stop for your power needs. And guess what? It's got a flashlight built in. Because why not? Perfect for when you're fumbling in the dark during a camping trip or a sudden blackout. Whether your batteries are 4.2V or 3.7V, this little gadget has got you covered. Plus, it runs on USB, so you can take it anywhere. Basically, it's the Swiss Army knife of battery chargers.
- Built-in flashlight
- Compatible with 18650 batteries
- 4.2V/3.7V output
- USB powered
- Multi-slot charging
General specs
- Brand: AI Supermarket
- Seller: Joom
- Compatibility: 18650 lithium batteries
- Output Voltage: 4.2V, 3.7V
- Power Source: USB
- Features: Multi-slot charging, Built-in flashlight
- First listed by seller: 6/21/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
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Smart USB Charger for Lithium Batteries Multi-slot charging
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Universal USB Smart Charger Black
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| Brand | AI Supermarket | Sunnyway | Aloisia | Gardenny | EmilyWoo | RW-electronic |
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| Price | $7.07 | $11.14 | $5.45 | $6.75 | $6.67 | $6.79 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 22, 2025 | August 8, 2025 | August 30, 2025 | September 2, 2025 | September 2, 2025 | August 8, 2025 |
| Compatibility | 18650 lithium batteries | 18650 lithium batteries | 18650 lithium-ion batteries | 18650 lithium-ion batteries | ||
Smart USB Charger for Lithium Batteries
George P.
Nottingham
June 27, 2025
as someone who's always tinkering with gadgets, i picked this up after my old charger gave out. initially, i was skeptical—it felt like just another gimmick, but after using it for a few weeks, it's grown on me. i've used it to charge batteries for my camping gear and even around the house during a power outage. the multi-slot setup saves me a lot of time, and the usb feature means i can plug it into my power bank. that said, it's not perfect; the light is more of a novelty, and it doesn't charge as fast as i'd like in some cases. overall, it's a solid tool that does what it promises, though it could use some refinements. for the price, it's a good buy, and i'd recommend it to others who need a reliable charger without fuss. :)
- Pros: i really appreciate how this charger can handle multiple batteries at once, making it super efficient for my needs. the built-in light is a nice touch for those dark moments, and its compatibility with various battery types is very handy. being usb-powered means i can use it anywhere, which is great for on-the-go situations.
- Cons: it could be a bit bulky for carrying around, and the light isn't very bright, so it's not ideal for serious tasks. sometimes the charging feels a bit slow, and i wish it had more visual indicators for battery status.