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BESTEK 300W Car Inverter DC 12V to AC 110V w/ 2 AC Outlets & Dual 4.8A USB Ports
$20
$35
42% off
Amazon
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AmazonDeal Details
BESTEK. via Amazon has BESTEK 300W Car Inverter DC 12V to AC 110V w/ 2 AC Outlets & Dual 4.8A USB Ports (MRI3011BU) on sale for $25.99 - $6.50 (25%) off when you apply promo code 22AGAK6A on the checkout page = $19.49. Shipping is free w/ Prime or on $35+ orders.
Thanks to Staff Member DesertGardener for sharing this deal.
About this product:
Thanks to Staff Member DesertGardener for sharing this deal.
About this product:
- 300W continuous power with 700W instantaneous peak output
- 11-17V input voltage compatible with Tesla vehicles
- Dual 4.8A USB ports for fast charging of mobile devices
- Aerospace aluminum housing with built-in 40 amp fuse
- Smart cooling fan activates when output exceeds 70W
Editor's Notes
Written by jimmytx | Staff- About this Store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
- Additional Information:
- Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
BESTEK. via Amazon has BESTEK 300W Car Inverter DC 12V to AC 110V w/ 2 AC Outlets & Dual 4.8A USB Ports (MRI3011BU) on sale for $25.99 - $6.50 (25%) off when you apply promo code 22AGAK6A on the checkout page = $19.49. Shipping is free w/ Prime or on $35+ orders.
Thanks to Staff Member DesertGardener for sharing this deal.
About this product:
Thanks to Staff Member DesertGardener for sharing this deal.
About this product:
- 300W continuous power with 700W instantaneous peak output
- 11-17V input voltage compatible with Tesla vehicles
- Dual 4.8A USB ports for fast charging of mobile devices
- Aerospace aluminum housing with built-in 40 amp fuse
- Smart cooling fan activates when output exceeds 70W
Editor's Notes
Written by jimmytx | Staff- About this Store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
- Additional Information:
- Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
Community Voting
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Top Comments
Community Reviews
This compact 12 volt to 110 volt inverter is best for light car use, like charging laptops, phones, dash cams, small fans, and rechargeable lights. The modified sine wave output works for many everyday devices, and the safety features, alarm, and shutdown behavior are described as working properly. The USB ports are slow, the 300 watt rating is treated cautiously, and real-world output is closer to about 100 to 150 watts from a vehicle socket. It can also draw power when left plugged in, so it is better suited to short, on the road use.
Common Questions (5)
In practice it is usually limited by the vehicle socket to about 120W to 150W, not the full 300W label. That is enough for lights, laptops, phones, and small electronics, but not for blenders or power tools.
No. It is a modified sine wave inverter, so sensitive electronics can behave differently than on a pure sine unit. It is still usable for many small devices, but newer or picky electronics may prefer pure sine power.
It can handle laptops, phones, dash cams, rechargeable lights, small fans, Wi‑Fi gear, modems, and similar low-draw electronics. It will not run AC power tools or other high-amp appliances.
Yes, it can have enough parasitic draw to kill a battery if left plugged in after the vehicle is off. It is safest to unplug it when parked and use it while driving or with the engine running.
The USB ports work, but they are slow compared with the AC outlet. USB-C charging can take hours for a laptop, while the AC plug can charge much faster.
AI-generated summary based on comments from the community. Updated ago
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22 Comments
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The modified sine wave will fast charge all devices if you have the proper wall warts. The newer pure sine wave will work on newer electronics.
The USB ports are very slow to charge devices, even if using fast charge cables. Slow, as in hours to charge my laptop via USB C, vs 25 minutes or so while using the 140a AC plug.
You can't charge these all at once, I'm trying to give you usage ideas.
These will not work for ac power tools, or really anything that needs more amps than a fan. There are other inverters that do that, but not anywhere near this price point.
Also, make sure you're driving while charging devices. These inverters are small but they will kill your battery quick. Even if just plugged in, they have a high parasitic draw.
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