AGM BATTERY UNDER THE BONNET
Submitted: Monday, Mar 26, 2007 at 19:42
ThreadID:
43666
Views:
2986
Replies:
9
FollowUps:
14
This Thread has been Archived
Crakaphat
Hello all.
Wanting to know whether it is possible to safely run and AGM sealed battery under the bonnet of a 80 series landcruiser. I have heard that it isn't advisable cause of the heat generated but on the other hand have also heard of people doing it and note having a problem.
Would be be advisable just to use a 100 - 120amp wet cell deep cycle????
If poeple could let me know what they are running under their bonnet as an AUX battery that would be great.
All info or advise would be great.
Reply By: Derek from Affordable Batteries & Radiators - Monday, Mar 26, 2007 at 20:05
Monday, Mar 26, 2007 at 20:05
Hi Craka
You have asked the same question 3 times in the last 24 hours.
An AGM will do what you want, your 80 series is OK for under bonnet heat and will not damage a good quality AGM battery.
Regards
Derek.
AnswerID:
229877
Follow Up By: Brew69(SA) - Monday, Mar 26, 2007 at 20:43
Monday, Mar 26, 2007 at 20:43
I wonder what different wording tomorrows post will have ? LOL
FollowupID:
490650
Follow Up By: Member - John (Vic) - Monday, Mar 26, 2007 at 20:45
Monday, Mar 26, 2007 at 20:45
Interesting screen alias????
FollowupID:
490653
Follow Up By: Derek from Affordable Batteries & Radiators - Monday, Mar 26, 2007 at 20:48
Monday, Mar 26, 2007 at 20:48
;-)
Do a google search on it.
FollowupID:
490656
Follow Up By: Member - John (Vic) - Monday, Mar 26, 2007 at 20:53
Monday, Mar 26, 2007 at 20:53
Right...Yep...Good...Ok!!
Did that interesting alias as I said. ;-)
FollowupID:
490660
Reply By: Alloy c/t - Monday, Mar 26, 2007 at 20:29
Monday, Mar 26, 2007 at 20:29
90 AMP AGM /HGL fits as does 80 amp , just do it.
AnswerID:
229887
Follow Up By: Mainey (WA) - Thursday, Apr 26, 2007 at 23:45
Thursday, Apr 26, 2007 at 23:45
The Fullriver HGL is only a "general purpose" agm Cranking battery and not a true deep cycle battery as he/they ask for --> "Would be be advisable just to use a 100 - 120amp wetcell deep cycle ?"
FollowupID:
497203
Reply By: Mike Harding - Monday, Mar 26, 2007 at 21:07
Monday, Mar 26, 2007 at 21:07
If you put an AGM in the engine compartment it will explode and kill everyone in the vehicle. Just take a look at previous post on ExplorOz and they will confirm what I say.
Mike Harding
AnswerID:
229899
Follow Up By: Bilbo - Monday, Mar 26, 2007 at 21:30
Monday, Mar 26, 2007 at 21:30
You're gonna get your legs slapped if this carries on,
young Michael,,,,,,,,,,
Bilbo
FollowupID:
490679
Follow Up By: Mike Harding - Tuesday, Mar 27, 2007 at 16:55
Tuesday, Mar 27, 2007 at 16:55
Only if you promise to wear those black leather trousers again!
Joking aside: AGMs do not tolerate high temperatures as
well as wet cells - you may get away with it but it will probably shorten the life of the battery - assuming it doesn't explode! :)
Mike Harding
FollowupID:
490849
Follow Up By: Pajman Pete (SA) - Tuesday, Mar 27, 2007 at 20:20
Tuesday, Mar 27, 2007 at 20:20
Unless you put the AGM in a 3L Patrol, then it will be a close finish - battery or engine!
(Peter sits quitely by the computer with the drag set only lightly waiting for a bite ....)
Pete
FollowupID:
490888
Follow Up By: Bilbo - Tuesday, Mar 27, 2007 at 21:55
Tuesday, Mar 27, 2007 at 21:55
Paj,
You're another one that's gonna get his legs slapped,,,,,,,,,,,,,,
Bilbo
FollowupID:
490912
Follow Up By: Pajman Pete (SA) - Wednesday, Mar 28, 2007 at 08:08
Wednesday, Mar 28, 2007 at 08:08
Hmmmm. Only one nibble, I must be using the wrong bait.
Pete
FollowupID:
490957
Reply By: Derek from Affordable Batteries & Radiators - Monday, Mar 26, 2007 at 21:29
Monday, Mar 26, 2007 at 21:29
Hi Mike
Thermal Charge Runaway will not be a problem in a 80 series.
You are just scaring the guy now ;-)
AnswerID:
229907
Reply By: Member - Fourplayfull - Tuesday, Mar 27, 2007 at 15:38
Tuesday, Mar 27, 2007 at 15:38
G,Day Cracka ,
I have run 2 AGM batts under bonnet for last 2 years (optima) with no probs. Several hot runs inc.
Anne Beadell Highway in November 06 . Vehicle is TD 80 series with LC battery boxes .
Cheers
John
AnswerID:
230043
Follow Up By: Brew69(SA) - Tuesday, Mar 27, 2007 at 18:09
Tuesday, Mar 27, 2007 at 18:09
How's thing
John? Long time no see. Say G'day to Suz for us. Have to catch up soon. Stu and Dawn
FollowupID:
490859
Follow Up By: Member - Willie , Epping .Syd. - Wednesday, Apr 25, 2007 at 18:24
Wednesday, Apr 25, 2007 at 18:24
Hi
John,
How you doing ? Did a trip up to Alice area with Noel in March . Great fun , but got rained out in the end . Say hi to Suzy .
Willie .
FollowupID:
496941
Reply By: Bilbo - Tuesday, Mar 27, 2007 at 17:42
Tuesday, Mar 27, 2007 at 17:42
Same as Fourplay above, I run 2 Optima AGMs under the bonnet with the Chev V8 - and THAT does get hot under there due to all the noiseproofing,,,,,,,,,,,,no probs so far after 12 months.
Bilbo
AnswerID:
230067
Reply By: Member - lyndon K (SA) - Tuesday, Mar 27, 2007 at 21:16
Tuesday, Mar 27, 2007 at 21:16
I run a 50amp excide orbital agm under the bonnet, 2 years no probs. 78 series so the battery does have a bit of space around it. I also have 2 more in the car, why not put it in the back of the car? AGM excide orbitals don't vent or leak even if you smash them.
AnswerID:
230108
Reply By: djm67 - Wednesday, Mar 28, 2007 at 21:27
Wednesday, Mar 28, 2007 at 21:27
Might help if you use a genuine Toyota battery tray, the plastic ones.
They partially seal the area from the engine bay and allow fresh air in the front, they seal against the bonnet as
well.
AnswerID:
230346
Reply By: Member - Willie , Epping .Syd. - Wednesday, Apr 25, 2007 at 18:29
Wednesday, Apr 25, 2007 at 18:29
I am an idiot . What does AGM stand for ?
Can you get a higher amp hour "AGM" battery into the same L x B x H as a normal Deep Cycle type or do they take up the same volume per amp hour rating ?
Willie .
AnswerID:
235773
Follow Up By: Mike Harding - Wednesday, Apr 25, 2007 at 18:49
Wednesday, Apr 25, 2007 at 18:49
Hi Willie
Absorbed Glass Mat.
Don't know the answer to your other question for sure but I suspect there is not much difference in size.
An AGM is still lead-acid battery technology however it has some advantages over conventional wet or SLA lead-acids; it will not leak acid even if the case is broken ( it's the only L/A battery permitted for air freight) and it will accept a much higher charging current than the others additionally it has a much lower internal charge leakage so is excellent for long term applications. However it does not deal with heat as
well as conventionals so despite what people on here may say they have done it is not a good idea to use them underbonnet. The following two figures are from memory but my AGM has a max operating temperature of 55C and I think semiconductors used in underbonnet applications are normally rated to 120C.
Mike Harding
FollowupID:
496948
Follow Up By: Mainey (WA) - Thursday, Apr 26, 2007 at 23:51
Thursday, Apr 26, 2007 at 23:51
Agreed............ heat shortens their effective working life span as they can't be refilled as a wetcell can and also has to be occasionally.
FollowupID:
497205