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AR15.COM
3/16/2012 1:44:04 PM EDT
I just started my generator up and as usual the battery hardly turns it over so I just pull started it.  Has anyone put a bigger battery like a lawn mower or car battery on their generator?  I am sure the battery was not fully charged, but it is 70 degrees outstide.  It sure would not work when it is -40 degrees.  I think I need more cranking amps then the little battery puts out.  It is a Generar generator and battery.  Any ideas or pics are welcome.
3/16/2012 2:31:34 PM EDT
[#1]
I'd think that you'd be better with a battery tender.  Not a charger, a tender.   Batteries go flat in a hurry when not used, and I'd suspect that is more like your problem.  Generac would not install a battery incapable of starting the generator.

Ops
3/16/2012 2:37:39 PM EDT
[#2]
get a gel battery they last I just saw an ad in a bike mag that had a tiny

battery that put out 800 cca for the big twins.
3/16/2012 3:32:15 PM EDT
[#3]
+1 for the battery tender.   Plug it in and be done.   Battery is ready to go when you need it.
3/16/2012 3:36:50 PM EDT
[#4]
I just jump mine off with my truck or recoil start.  I can't keep a battery in it, even with a trickle charger.  The local battery stores do say, the batterys get so much abuse in lawn mowers and such, that the manufacturers won't put a lot of effort into the battery or warent it.  Gell cells in ATVs last longer but I don't know they will handle the amps of my generator.  Plus, it's lighter without a battery.
3/16/2012 3:50:49 PM EDT
[#5]
Quoted:
get a gel battery they last I just saw an ad in a bike mag that had a tiny

battery that put out 800 cca for the big twins.


doesnt make a difference if its gell cell or standard LA 200cca or 2000cca, unless the battery has a charge then it isnt going to start anything. things like this need a battery tender to keep the battery charged.
3/16/2012 3:57:59 PM EDT
[#6]
Quoted:
Quoted:
get a gel battery they last I just saw an ad in a bike mag that had a tiny

battery that put out 800 cca for the big twins.


doesnt make a difference if its gell cell or standard LA 200cca or 2000cca, unless the battery has a charge then it isnt going to start anything. things like this need a battery tender to keep the battery charged.

I find the gells tehn to hold the charge for a year of more. Plenty of time for regular test runs, Acid and gel are worlds apart.

3/16/2012 4:01:44 PM EDT
[#7]
Quoted:
Quoted:
Quoted:
get a gel battery they last I just saw an ad in a bike mag that had a tiny

battery that put out 800 cca for the big twins.


doesnt make a difference if its gell cell or standard LA 200cca or 2000cca, unless the battery has a charge then it isnt going to start anything. things like this need a battery tender to keep the battery charged.

I find the gells tehn to holdthe charge for a yer of more Plenty of time for regular test runs,



then you have magic gell. i have used several gell cells in my jeeps and 4wd trucks for several years and if not started every few months at the most they will be dead. now, maybe if they arent hooked up to anything then yeah, a year is probably doable but the same can be said for a plain ol LA battery.
3/16/2012 5:17:30 PM EDT
[#8]
Quoted:
Quoted:
Quoted:
get a gel battery they last I just saw an ad in a bike mag that had a tiny

battery that put out 800 cca for the big twins.


doesnt make a difference if its gell cell or standard LA 200cca or 2000cca, unless the battery has a charge then it isnt going to start anything. things like this need a battery tender to keep the battery charged.

I find the gells tehn to hold the charge for a year of more. Plenty of time for regular test runs, Acid and gel are worlds apart.




Gels are acidic.. Sorta...

Yep, they seem to hold a charge longer.

Recombinant  sealed batteries do very well too.

3/16/2012 6:16:24 PM EDT
[#9]
Quoted:
I just started my generator up and as usual the battery hardly turns it over so I just pull started it.  Has anyone put a bigger battery like a lawn mower or car battery on their generator?  I am sure the battery was not fully charged, but it is 70 degrees outstide.  It sure would not work when it is -40 degrees.  I think I need more cranking amps then the little battery puts out.  It is a Generar generator and battery.  Any ideas or pics are welcome.

are you sure that the alternator/charging system on the generator is operating correctly?  

we had a real "EASY" WINTER here with almost no snow, and my Kubota diesel tractor sat in one place in an unheated shed since the weekend after thanksgiving.  in fact throughout the winter i kept forgetting to go and run it for a half hour to keep the battery topped off.  

last saturday i decided to finally get the chainsaw and tractor out to go cut up a tree that blew over in the winter.  so, ~4 months of sitting, turn the key, let the glow plugs heat the head for a few seconds, and the tractor started right up –– no different than if it had been run a couple of days ago.

ar-jedi
3/16/2012 6:36:36 PM EDT
[#10]
I put a trickle charger on mine about once every other month and have no problems.
I replace my main generator battery about every 3 years, or when it seems not to spin the gen over
quick enough after a good trickle charge.
3/16/2012 6:54:27 PM EDT
[#11]
ok here's what i do. i bought a good deep cell battery and a harbor freight solar charging system. i made wire harnesses using the med size emerson quick connects. this way i use the same battery for multible things and it/s always ready to use. i use the bat on the lawn tractor, dump trailer, 12v transfer pump and of coarse the diesel gen. i got sick of replacing each battery all the time because those small batteries just don't last. this deep cell is now 3years old and going strong.