How long can a 100Ah battery run a 1500 watt heater?

[@SeidelRanch]

How long can this 100Ah battery run this 1500 watt heater? We test it and find out. This is the battery we tested: amzn.to/3W0Amhy Inverters: amzn.to/4gNQGtY Heaters: amzn.to/3ZYm6XR

[@carmichaelmoritz8662]

1,360 Watts is less than 15 amps and not 100 amps like you claim.

[@carmichaelmoritz8662]

For that battery running the heater for one hour is actually pretty good. It would be plenty good for running a small fridge or a small freezer or AC unit for power outages or camping.

[@SeidelRanch]

@@carmichaelmoritz8662 Amps are based on voltage and wattage. I am talking about the amps from the battery which is rated at 12.8 volts, not the amps from the inverter. I also tell you how many amps the inverter is providing at 110 volts.

[@KevinBrewton]

​@@carmichaelmoritz8662he doesn't do math, just ads. Big difference.

[@SeidelRanch]

@@carmichaelmoritz8662 Yes, you can get 2 to 3 hours from a small AC unit (based on ambient temperature) through an inverter on a 100Ah LiFePO4 battery: kzbin.info/www/bejne/d5mmgIJmhayhias

[@rtsrts2317]

It lasted an hour on high. You're welcome. 7:40

[@reidtillery2856]

12.8 volts x 100 amps = 1280 watts. Less than an hour.

[@Sckloste]

Amazing video! This was perfect, because you showed the experiment without any of the fluff.

[@SeidelRanch]

Thank you. I was trying to get to the point.

[@SeidelRanchReviews]

That was a great test. You showed how all 3 items run and how they performed. Good job.

[@SeidelRanch]

Thanks.

[@budmartin3344]

That inverter has about 85% efficiency so, if you are drawing 1360W on the DC side 3:20, the AC power draw by the heater is about 1164W, that heater was not drawing anything close to 1500W, you should have an AC Watt meter on the output of that inverter so you can monitor the power draw of the AC Load. Good testing video.

[@billruss6704]

15% turns into heat so in this case 100% efficient. If it was a cooling fan then 70% efficient.

[@CoyoteEDC]

Ok did I just miss it, how long (in time) did the 100Ah battery run the 1500 watt heater?

[@chadm1969]

1 hour

[@deniswauchope3788]

Yes, he said it twice at the end, the battery lasted one hour.

[@KevinBrewton]

Yep, this is KZbin. 8 minutes for 10 seconds of information

[@SeidelRanch]

Yes, 1 hour.

[@SeidelRanch]

@@KevinBrewton If you wanted a quick answer without the details, you can just ask google. KZbin is for videos. 8 minutes for 8 minutes of information. 👍

[@INVAZOR33]

And inverters being so inefficient contribute to the heating win win. Are DC heaters a thing?

[@SeidelRanch]

Haha, that is true. They are better at heating then cooling for sure.

[@Tony-w5o8o]

1 hour not bad ! Would run longer start car charge battery back up lol

[@michaelhack2184]

Would have been nice to see sine wave on o scope during test. Seee the amount of distortion.

[@joshua511]

It would be interesting to see how long it ran on low. We have an electric fireplace that uses 1500watts.

[@SeidelRanch]

Strangely enough, the low setting on this heater is just 200 watts lower. I figured it would be like half the wattage, but I was wrong.

[@MrRacerhacker]

approx under 0.75hrs or so? can ez just do WH of battery and do DC load calc and counting dc inverter efficency

[@SeidelRanch]

1 hour for this test. That is what I was wondering too. The math says about 40 minutes or so, but as we saw in the video the heater does not pull 1500 watts at max, the inverter overhead was less than 20%, and the battery provided a little more than spec.

[@jussikankinen9409]

How long 12v 800w heater

[@endolfdaise5168]

need to know voltage of battery and efficiency of inverter

[@SeidelRanch]

My math was mostly generic, but I expected it to be about 40 minutes. I was a little surprised it went a whole hour.

[@simon359]

Wow, my 1 kW battery can only run it for around 20 to 30 minutes?

[@Yukonjackman1]

Nicely done

[@tenlittleindians]

Sounds like you would need 12 of those batteries to make it through darkness on the winter solstice inside your camper. 12 batteries would need a lot of solar to both provide heat and charge up the batteries during the day. That would be a truely off grid winter heating solution.

[@SeidelRanch]

Yes, that is true. It would take a lot of solar and batteries to heat a living space like this. We use a Mr Buddy heater to heat the RV if we are off grid (kzbin.info/www/bejne/l6LJgGOjmd93brs). If we are on shore power, we use an electric heater like this or our electric fireplace.

[@mikejones-vd3fg]

Wow yeah, thats almost impossible, especially during the winter where you have less sun and lots of clouds, at leaste here i figured id need 10x more panel to keep the same output as in summer. Say you only got 5hours of sun, youd need like 320w of panel to charge 1 100ah battery, 3900w to charge 12 of them. Factor in clouds and now you need 10x more or 39000w of solar panel to charge your battery pack in 5 hours on a cloudy winter day that will give you 10 hours of heating.

[@claytonrobertson4999]

No way that pulled 100 amps! No way!

[@SeidelRanch]

If you look at the battery monitor, it's averaging over 108 amps running the heater from the start. As the voltage drops, the amps go higher to make up for the loss. It's basic math. 1350 watts / 12.5 volts = 108 amps

[@sylkelster]

Get $100 Chinese diesel heater and call it a day. Battery powered inverters + resistance heaters are the least practical and least efficient method of producing reliable heat on the planet. Although if that battery gave you 100 amps continuous for a solid hour, that's rather impressive (for the battery itself).

[@John-vz1wq]

Glad i didnt spend watching whole 8min video to find out the answer

[@davifrancisco6830]

😊😊😊😊😊

[@SeidelRanch]

Thanks.

[@harmlesshermie]

Click the video, read comments then bail out. Thank you comment section.

[@AlbertoPirrotta]

Bel test !!!

[@Timejumperk9000]

Solid state batteries coming. Faster charging. Lithium batteries batteries get hot they start on fire. You can't put them out with water.

[@SeidelRanch]

Yeah, once you get a lithium fire going, you have to smother them I have heard. They are super hot and very hard to put out. I can't wait for some good solid state ones.

[@bernswonger57]

Doesn't the math come to 8 hrs. 100amps÷ 12.5=8

[@SeidelRanch]

I don't know what math that is. Doing 100 amps X 12.8 volts = 1280 watt hours. That is the spec of the battery. The math would come out to about 40 minutes if you take the max specs of the inverter overhead (about 20%) and the heater consumption (1500 watts).

[@KevinBrewton]

​@@SeidelRanchdoesn't know math but makes a video on math. LMFAO!!!

[@mikejones-vd3fg]

Its a 100 amp hours battery, 100ah which basically means 100 amps for 1 hour, so it checks out.

[@burtonnystrom4606]

And it ran for how many minutes/ hr ? If you say your going to tell us something the tell us not bs us

[@Laserguy2009]

plastic heaters make me nervous!!

[@jasonstclair1329]

Seems to me you are using fuzzy math with your calculations 😂😂 If that 1500watt heater uses 12.5 amps to operate and the inverter is pulling over 100amps from the battery you should probably just throw all of it in the garage and buy yourself a heated vest .

[@SeidelRanch]

Nothing fuzzy about the test. The numbers are right there. I personally would not run a heater on this setup in a real situation. I would use fire to heat.

[@jussikankinen9409]

Why no cyckling heater no need go gym

[@theashpilez]

About a foot.

[@SeidelRanch]

Pretty close.

[@dwmcever]

45 minutes.

[@SeidelRanch]

Good guess.

[@frostymug8929]

Too too much talk this video shouldn't have lasted more than 4 minutes and there was too many cables. Excess excess

[@SeidelRanch]

What is this too much and too many you speak of?

[@st3rox]

Just watch at double speed ;) honestly though this was a well paced and informative video

[@davej7434]

​@st3rox I clicked to watch, yes it was long for the info, I have a little ceramic heater I want to use during the night, wanted to get an idea of battery size. 100Ah for one hr isn't a great plan for me, but I won't be running contineous if I use the heater on the 500 watt setting, fire up the chinese heater to set the initial temperature and let the electric hold the temp the rest of the night. My guess I should be good for 2 hrs at low, if continous. Broken up for 15 min of run time per hr. Good nights sleep. Thanks for all the info.

[@BigSlick40]

Nice video but damn man you talk too much. To save everybody the torture, it's one hour.

[@SeidelRanch]

I know. I try to cut a lot out. I teach new educated adults at work all the time and you have to use lots and lots of words or they just don't get it. Sorry.

[@jeffl4810]

You are only burning about 1,300 W in the heater, as the inverter is maxed out, and limiting to 112V. The battery capacity is around 1,280Wh. I'm surprised the inverter looses were not more significant.

[@adgieem1]

100 hours

[@SeidelRanch]

So close...

[@davedyck3982]

😂

[@claytonrobertson4999]

No way that pulled 100 amps! No way!

[@SeidelRanch]

If you look at the battery monitor, it's averaging over 108 amps running the heater from the start. As the voltage drops, the amps go higher to make up for the loss. It's basic math. 1350 watts / 12.5 volts = 108 amps

[@stevendonovan9762]

It's 10.8 amps

[@KevinBrewton]

​@@stevendonovan9762he doesn't math, he just said so.

[@theclearsounds3911]

@@stevendonovan9762 A bit over 10.8 amps to the heater. Over 100 amps from the battery. When you boost 12 volts to 120 volts, you divide by 10 for the amps, or else you are getting more power out than you are putting in. Then, you need to account for the roughly 90% efficiency of the inverter. Also, that inverter was putting out less than 117VAC. So, yes, the inverter was pulling over 100 amps.

[@sylkelster]

Yes way. P/E=I