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View Full Version : Question about batterys for making your smoker portable..


Frog
05-15-2013, 03:31 PM
I have a question.. i have a GMG and want to take it camping with me, only problem is when i bring my truck i tend to use it to dock/undock the boat or jet skis, go to store etc. so i wouldn't be able to leave my truck stationed for Long periods of time. I already bought a 700Watt inverter, People say buy a Deep cycle battery, now my main question is is there a certain size i need or does any deep cycle work? should i look for a bigger size/smaller size etc. Any information would be greatly appreciated.

I also have one of these http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_900-amp-peak-jumpstarter-peak_10110320-p#fragment-1 Will it work for long periods of time? im just trying to cover my basics for memorial day weekend since ill be doing alot of cooking :)

ckelly
05-15-2013, 04:13 PM
Reccommend you disconnect the hot rod so it doesn't drain the battery and ignite the unit manually instead. The units themselves require very little power to operate once the igntition sequence is complete.

Arlin_MacRae
05-15-2013, 04:43 PM
I ran a Google search and there's a thread on the pelletheads forum that's probably got your answer. ;)

tyotrain
05-15-2013, 04:46 PM
golf cart battery's would be best..

Ron_L
05-15-2013, 04:51 PM
Reccommend you disconnect the hot rod so it doesn't drain the battery and ignite the unit manually instead. The units themselves require very little power to operate once the igntition sequence is complete.

The igniter on most pellet grill/smokers are only on for 5 minutes and draw 400W. That's almost nothing since it's on for such a short time.

To frog, there are several threads on here discussing this.

There is a Google search near the bottom of the page that you can use. Search for inverter or something similar and you'll find those threads.

Frog
05-15-2013, 05:02 PM
I used the search but i couldn't find the Size/type of battery beside it just saying "deep cycle". Im trying to figure out what is best battery, there are multiple options such as motorcycle,atv,lawn and garden, car etc.. all are different sizes im assuming each would only do so many hours of cooking before its dead. So what would be the best option be?

boogiesnap
05-15-2013, 05:04 PM
deep cycle. :becky:

Frog
05-15-2013, 05:29 PM
deep cycle. :becky:

LMAO :doh:

bigdogphin
05-15-2013, 05:39 PM
Rv/marine deep cycle battery they look bigger than a regular battery and a made for trudging along.... You can go to any auto parts store and get one

Ron_L
05-15-2013, 06:12 PM
I used the search but i couldn't find the Size/type of battery beside it just saying "deep cycle". Im trying to figure out what is best battery, there are multiple options such as motorcycle,atv,lawn and garden, car etc.. all are different sizes im assuming each would only do so many hours of cooking before its dead. So what would be the best option be?

The biggest you can buy?

I use a group 31 deep cycle, which is 105 amp hours. But, most batteries drop below a usable voltage at about 75% of capacity, so make that approx. 78AH.

Now... What does that mean? :-D

Most pellet cookers use about 50W when running without the ignitor on. At 110V that's .45 amps, so that's what the cooker will draw from the output of the inverter. But, the input of the inverter is what we care about to figure battery life. at 13.8V (normal battery output) that's 3.6A. Plus, the inverter isn't 100% efficient, so add 10% as a fudge factor, so call it just under 4A.

The ignitor uses 400W, or approx 30A at 13.8V, but it's only on for 5 minutes, to that's 2.4AH, so it really doesn't reduce you run time by much.

Now, back to our battery. Is can supply 75AH of power before needing a recharge, so at 4A, that's 75/4 = 18.75 hours, - the 2.4AH that the ignitor used, so you can run for approx. 16.35 hours.

YMMV.

:becky:

Also, anything else like a guru running off of the inverter or directly off of the battery will reduce that.

Frog
05-15-2013, 06:16 PM
Rv/marine deep cycle battery they look bigger than a regular battery and a made for trudging along.... You can go to any auto parts store and get one

by chance do you know if size/CCAs matter? ive found sizes U1 and sizes 24 thru 31.

G'pa Herb
05-16-2013, 08:18 AM
A Yoder YS640 draws about 240 watts during ignition and about 30 watts constant after that, but, the inverters fan, when it cycles on and off, also draws wattage. In my case, the wattage draw jumps to about 50 watts everytime the fan cycles on and off.

Deep-cycle batteries are rated by Reserve Capacity (RC). The larger the battery, normally the larger the RC. The Sams Club Group 27 deep-cycle battery I bought is rated at 180 RC. Put 2 of these together in parallel and you get 360 RC. Google for the math once you figure out what your cooker draws for wattage/amperage, and you should be able to estimate an approximate runtime for your setup. I can tell you that in my case, with one battery, doing long cooks for 3 days, the battery I have won't do it.

hamiltont
05-16-2013, 08:39 AM
For what it's worth, I run my Traeger Lil' Tex on a group 27 & a 400W Inverter with no problems. I've never run it long enough to see how long it will go but it's handled all my needs... I do let it light itself as well. I've seen where others disconnect the igniter and light it manually to save the battery. YMMV.

http://i1116.photobucket.com/albums/k566/tjhamilton/BBQ/Traeger/LilTexon12V_zpsfe7dae40.jpg (http://s1116.photobucket.com/user/tjhamilton/media/BBQ/Traeger/LilTexon12V_zpsfe7dae40.jpg.html)

Dan - 3eyzbbq
05-16-2013, 12:12 PM
approx. 16.35 hours.




:razz: Love the "approx." and then a number like .35. Made me laugh.

You have more patience then me. I just bought a generator instead.

Ron_L
05-16-2013, 12:18 PM
:razz: Love the "approx." and then a number like .35. Made me laugh.

You have more patience then me. I just bought a generator instead.

Well... I guess that's the engineer in me :-)

I have a generator as well, but it's a bit of a pain to refuel. The Honda EU3000 Handi runs about 7 hours on a tank, so having a battery and an inverter with a built in auto transfer switch allows me to run off of comp power and automatically switch to the battery if power drops.

Cayman1
05-16-2013, 12:37 PM
What inverter do you have? I like the auto switchover feature.

Dan - 3eyzbbq
05-16-2013, 12:38 PM
, so having a battery and an inverter with a built in auto transfer switch allows me to run off of comp power and automatically switch to the battery if power drops.

NOW your talking my language. If you get a chance, please shoot me an email to dan@3eyzbbq.com and explain how I can set the auto transfer up.

hamiltont
05-16-2013, 01:10 PM
Would it be possible to run off the 12V battery/Inverter combo and have a battery charger connected so if/when the power goes off it just runs on battery? Never tried it so I'm asking... Cheers!!!

TheJackal
05-16-2013, 01:40 PM
Would it be possible to run off the 12V battery/Inverter combo and have a battery charger connected so if/when the power goes off it just runs on battery? Never tried it so I'm asking... Cheers!!!

I believe this i what you are asking to do:

12v power Inverter connected to a battery charger running a 500 watt appliance - YouTube

hamiltont
05-16-2013, 02:00 PM
I believe this is what you are asking to do:



Yep, Appears to work without incident. Cheers!!!

Frog
05-16-2013, 03:26 PM
For what it's worth, I run my Traeger Lil' Tex on a group 27 & a 400W Inverter with no problems. I've never run it long enough to see how long it will go but it's handled all my needs... I do let it light itself as well. I've seen where others disconnect the igniter and light it manually to save the battery. YMMV.

http://i1116.photobucket.com/albums/k566/tjhamilton/BBQ/Traeger/LilTexon12V_zpsfe7dae40.jpg (http://s1116.photobucket.com/user/tjhamilton/media/BBQ/Traeger/LilTexon12V_zpsfe7dae40.jpg.html)


Thanks for the size :)... Just walked away with a Interstate Deep cycle 27M.

27M, CCA- 600. MCA- 750. Reserve Capacity: 160 minutes at 25A . Hours of ampere load @ 5amps 18.9. hours of ampere load @ 15amps 5.5. Capacity 96000mAh/ 96.00Ah Rating 1152 Whr





by chance does the 18.9hrs @ 5amps include the Reserve? if not does that mean ill get aprox an extra aprox 800min?

im going to put my GMG to the test this weekend and next weekend for memorial day. worse case is ill have my truck and backup battery if needed but i dont want to have the hassle of going through all that if i have a battery now specifically for the grill :)

hamiltont
05-20-2013, 08:21 AM
If you're concerned about the not having enough battery you could add a solar battery charger to charge it back up during the day. I don't have one and I know zilch about them but here's a link with a few examples. Maybe someone with more knowledge/experience will chime in and point you in the right direction. http://www.northerntool.com/shop/tools/NTESearch?storeId=6970&catalogId=11652&langId=-1&pageSize=12&beginIndex=0&sType=SimpleSearch&resultCatEntryType=2&showResultsPage=true&pageView=image&N=0&ipp=24&Ntt=SOLAR+BATTERY&searchTerm=SOLAR+BATTERY&Ntk=All&Ntx=mode+matchallpartial&Ns=P-Price

Cheers!!!

Ron_L
05-20-2013, 08:46 AM
What inverter do you have? I like the auto switchover feature.

NOW your talking my language. If you get a chance, please shoot me an email to dan@3eyzbbq.com and explain how I can set the auto transfer up.

Sorry guys... Busy week last week and busy weekend.

Here is the inverter/charger/transfer switch that I use...

http://www.xantrex.com/power-products/inverter-chargers/freedom-hf-newgen.aspx

The AC input side is designed to be hardwired but I added a heavy duty line cord. For the DC side I ordered some heavy duty inverter cables online that are 6 ga wire and had ring lugs on on end. That end connects to the battery. The other end connects to the terminals on the inverter. The AC output is a duplex outlet.

Nordy
05-20-2013, 10:35 AM
Here's my power setup for my FEC100 and PG1000... So here's a detailed description.

I have the Trip Lite APS 1250 mainly for the auto charger and automatic switch to battery power if site power is lost. If you are just wanting to run off battery power all time you can probably pick up a good inverter for cheaper.

I have two of these:
EverStart 27DC

They are hooked in parallel. (keeps the same voltage but increases capacity (adds amp-hours))

Easiest way is to just pick up some battery cables from an auto parts store. I went with 2 Gage. I used 35" set to connect the batteries together and a 42" set to connect to the tripplite. I picked up a fuse holder and an ANL fuse (250AMP) from my local Car stereo place to put between the battery bank and the tripp-lite.

The battery cables I got have a built in ground wire on the negative pole, so I attached my gound wire to that and ran it to my breaker box. (do you need a ground?... debatable)

Pretty simple connections:
Batt neg to batt neg, to tripplite neg
Batt post to batt pos, to fuse, to tripplite

I just cut the 42" cable running from batt pos to tripplie pos and inserted the fuse there. It was easy.

So far I have just put both batteries in your standard battery box from Walmart and strap the tripplite to the top of those boxes. Good enough for now...

SO Parts list
-2 sets of Gage 2 battery cables (got mine from autozone) at whatever length you need for your application
-Fuse holder and ANL fuse
-Batteries
-Battery boxes
-Ground wire

That's it!

As far as run times... I've ran three pits (2 FECs and A PG1000) for over 18 hours without a hiccup on battery only. Honestly 2 batteries is probably overkill. You can get bigger amp-hour batteries but I will almost always have power so I didn't really "max out" the amp-hours on the batteries. Supposedly, according to the manual, the FEC100 only pulls 50 watts max when the fan is maxed and the auger is running. So, I think I could run my setup for a really really long time... even if I run both the FEC100 and the PG1000. You would probably be fine on a one battery setup, I have two just in case I ever have to/want to run my trailer lights or other things off the tripplite during a comp.

Let me know if you have any more questions...

Here's a video... of the setup and the switch in action -

http://youtu.be/kbm0KZpMCVQ



Nordy

Hawg Father of Seoul
05-20-2013, 02:58 PM
The biggest you can buy?

I use a group 31 deep cycle, which is 105 amp hours. But, most batteries drop below a usable voltage at about 75% of capacity, so make that approx. 78AH.

Now... What does that mean? :-D

Most pellet cookers use about 50W when running without the ignitor on. At 110V that's .45 amps, so that's what the cooker will draw from the output of the inverter. But, the input of the inverter is what we care about to figure battery life. at 13.8V (normal battery output) that's 3.6A. Plus, the inverter isn't 100% efficient, so add 10% as a fudge factor, so call it just under 4A.

The ignitor uses 400W, or approx 30A at 13.8V, but it's only on for 5 minutes, to that's 2.4AH, so it really doesn't reduce you run time by much.

Now, back to our battery. Is can supply 75AH of power before needing a recharge, so at 4A, that's 75/4 = 18.75 hours, - the 2.4AH that the ignitor used, so you can run for approx. 16.35 hours.

YMMV.

:becky:

Also, anything else like a guru running off of the inverter or directly off of the battery will reduce that.

:razz: Love the "approx." and then a number like .35. Made me laugh.

You have more patience then me. I just bought a generator instead.

Well... I guess that's the engineer in me :-)

I have a generator as well, but it's a bit of a pain to refuel. The Honda EU3000 Handi runs about 7 hours on a tank, so having a battery and an inverter with a built in auto transfer switch allows me to run off of comp power and automatically switch to the battery if power drops.

Yeah only an engineer would use .1 as a fudge factor and consider the hundredth's decimal significant. :blah::wink:

I kid because I love.