Search results

Forgot to mention I learned about Lifepo2 mostly from Will Prowse videos on youtube. I don't know him and have never corresponded with him. I highly recommend those videos if you want to learn about Lifepo4 batteries. Sometimes Will gives tips on where to buy used Lifepo2 on ebay, but you...

Here are a couple of videos on how to make a water heater using a 12V DC heating elements. Uses a 5 gallon bucket but uses inappropriate element for battery (he is using solar panels). Should use 12V 300W, IMO. Uses plastic bucket and 12V 700W element. This would pull 58A so a bit much for...

Lithium-Ion has about same life cycle as lead-acid  (500-1000) Lithium Iron Phosphate (Lifepo4) has much longer life cycle (2000-4000) One affordable used hospital Lifepo4 battery are the Iccnexergy 40AH batteries you can find on ebay for $125. I believe they are limited on charge/discharge...

That video was full of misinformation. Lifepo4 are far better than lead-acid for many reasons. Unfortunately, the drop in replacement Lifepo4 batteries (Battle Born) are very expensive. To get a reasonable price you have to build a battery using four 3.2v cells and install a BMS, and find...

The best way is a DC to DC charger such as Renogy 20A,40A,or 60A models for two reasons. First, if you have big bank of AGM that are highly discharged and directly tied to your alternator they can pull more current than alternator is rated for and burn it up. Second, a DC to DC charger has...

Got my $7 coffee cup heater from ebay and did an experiment. Put 2 gallons of 72 degree water in a plastic bucket and heated it up with coffee cup heater. It pulled 2.65A @ 125Vac (330W). It took 44 minutes to heat up to 105.6 degrees. That calculates to 20.7AH out of a 12V battery using an...

Get an "Iron Hammer" self contained portable shower head. Then make a portable water heater using a Home Depot 5 gallon plastic bucket, EPDM 1" bulkhead, and 12v 300W heating element off ebay (standard water heater dimensions). Use jumper cables from car to heating element to heat up 2-3...

I researched that method and found a really interesting heat exchanger for $40 on ebay by dudadiesel that several have used successfully. You can find him on ebay by searching for "Stainless Steel Copper Brazed Heat Exchanger".  The 10 plate 8"x3" is really small and transfers a lot of heat.  I...

I've researched LiFePo4 batteries with a 20A Renogy charger. I have a cheap used LiFePo4 battery coming soon. LiFoPo4 will pull 20A until it tops off so it would only take one hour drive to restore 20AH needed to heat 2 gallons of water. You are right that lead-acid deep cycle take several...

I plan to have a secondary 100AH deep cycle battery with a 20A renogy charger and traveling daily.  Using 20AH daily for heating shower water is no problem as it will be replenished daily.  Storing a little coffee heater is less space than a stove and propane, and electricity will never run...

I'm trying to figure out the easiest way to heat up 2 gallons of water for a shower using a Home Depot pump up sprayer.  I thought about those coffee cup heaters you put in your cup and read up on them.  The 12V models won't work because they are only ~100W.  The 120V models are 300W and can...

The virus should make this forum much more popular.  Folks can't travel like they used too. I hope to learn tips from folks here on how to travel without using hotels, restrooms, or restaurants. Avoiding COVID will be difficult on the road.  Thanks to all.  Be safe.