What is the opinion of Reddit about the
Bewinner 12V/24V Car Immersion Heater Mini Portable Electric Car Boiled Water Immersion Heater Traveling Camping Picnic Water Immersion Heater for Boiling Water, Coffee or Tea(12V)?

A total of 2 reviews of this product on Reddit.

1 point


17th Oct 2020

I’ll send you a private message. It won’t link on comments for some reason.

I’ll try here: Bewinner 12V/24V Car Immersion Heater Mini Portable Electric Car Boiled Water Immersion Heater Traveling Camping Picnic Water Immersion Heater for Boiling Water, Coffee or Tea(12V) https://www.amazon.com/dp/B07SLXNHLB/ref=cm_sw_r_cp_api_i_FJYIFbRZ1QYJP

1 point


19th Jan 2022

I live off-the-grid in the woods. I run the gasoline generator only 1-2 times a week to charge batteries, and the rest of the time I’m running from batteries. (I’m hoping to at least partially transition to solar, but that requires removing a lot of trees.)

I try to do almost everything in DC (direct current), since all batteries and solar panels are DC, and DC-AC-DC conversion wastes half the energy. I also avoid voltage conversion (which can also waste around 10%).

All my electrical appliances fall into the following categories:

  • 5v USB, via an adapter from tool batteries: phone, headlamps, the upcoming Ryobi USB tools.

  • 12v batteries: almost entirely phased out. Car batteries and 12v tool batteries are less practical and cost-effective (usable Watt-hours per $). But there are still lots of RV DC appliances that only come in 12v.

  • “18v” (20v max) batteries, mainly Ryobi: laptops (direct via adapter wired to 5.5/2.1mm barrel connector), Ryobi fans, Ryobi lights, Ryobi water pump, Ryobi tools, Ryobi everything.

  • “24v” (21.9v avg) Kobalt batteries: I’m gradually transitioning to Ryobi. But the 24v LED strips glued to the ceiling are the best and most efficient light source, and Ryobi 18v isn’t enough.

  • “40v” (36.5v avg) Ryobi: chainsaw, brush cutter, and inverter.

I’d be very happy to transition EVERYTHING to Ryobi 18v!

I originally went with Kobalt batteries because they had the lowest Wh/$. Their 2-pack 24v 4ah is always available for $99 (1.77 Wh/$), and at “buy more save more” sale it gets as low as $66 (2.65 Wh/$). But now I see DTO Ryobi prices like 2*4Ah for $49.99 (2.92 Wh/$) or 9Ah HP for $79.99 (2.05 Wh/$ for 21700 cells)!

Here are some ideas for new 18v products:

  • An adapter that takes a Ryobi 18v battery on each side (combining voltage in series), and plugs into all 40v Ryobi tools (including the inverter and power station).

  • 18v Ryobi jackets, heating and cooling!, They should have multiple pockets back and front where you can plug in an 18v battery, and 18v output barrel connectors everywhere!

  • 18v Ryobi headlamps that plug into the aforementioned jackets. About 400-600 lumen on high (like Milwaukee), and as light-weight as possible. Can be used via a headlamp / helmet strap, or clicked directly onto the jacket.

  • 18v LED strips. You can find 12v and 24v, but not 18/20v.

  • 18v bug zappers! Never go camping near water without bug-zapping lights and electric bug-zapping rackets. I’d make an 18v racket that can be used for manual swatting, and also has an “auto” mode for when attached to a UV light to attract bugs.

  • 18v Immersion Heater – or an electrically-supplemented thermos that stays the same temperature as long as the battery doesn’t run out.

  • An adapter that looks like an regular 18v (and 40v) battery and plugs into all Ryobi tools, but gets its power from a wire. The wire can connect to a backpack DC power station (see below) or an AC wall adapter with power conversion brick (like Metabo).

  • An adapter that takes six 18v batteries and combines them into a DC power station, with switches for parallel (combined amps, same volts), serial (same amps, combined volts). Bonus points if you can combine multiple such adapters together (24x 18v 9ah batteries => 108v 36ah). Six 18v batteries in series would be around 120 volts, and can power many corded tools through an AC outlet without inverter power loss! Or, in parallel, they can power a stationary Ryobi fan, light, water pump, etc that many times longer than a single battery! Bonus points if they can snap together and be worn like a backpack.
    Bonus points if this adapter can also work as a charger, with pass-through when AC input electricity is available. This way you can have an off-the-grid cabin and never have to re-plug any wires – just run the external generator when needed.