Author Topic: Max Battery Size, 92 RC  (Read 880 times)

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Offline Chilly

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Max Battery Size, 92 RC
« on: August 22, 2020, 03:10:11 pm »
Battery in mine is smallish and dead.  What is largest group size that will fit?  Going with AGM this time.  Regular batteries dont seem to last as long as they used to
 
92 Ramcharger
360 TBI, auto, 241 t-case
44F, 9.25R posi, 3.54 gears (yeah, I know)
Skyjacker 4", 33x12.5

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    Offline jerseybud

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    Re: Max Battery Size, 92 RC
    « Reply #1 on: August 22, 2020, 06:48:54 pm »
    Group 31 like the Cummins trucks
    Or 2 small optima sideways
    1988 W-100 5.9 Magnum/NP-435/241/3.23 178,000 miles
    1992 W-250 5.9 Magnum/NV4500/241/4.10-177,000 miles
    1988/1993 W150 5.2 Magnum/46RH/241/3.55 160,000 mile
    1993 W-250 club cab CTD i/c 518/205/3.54- 301,000 miles!

    Offline Chilly

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    Re: Max Battery Size, 92 RC
    « Reply #2 on: August 22, 2020, 07:06:02 pm »
    That'll fit the factory tray?  Or it'll fit in the space with mods to the tray?
    92 Ramcharger
    360 TBI, auto, 241 t-case
    44F, 9.25R posi, 3.54 gears (yeah, I know)
    Skyjacker 4", 33x12.5

    Offline Elwenil

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    Re: Max Battery Size, 92 RC
    « Reply #3 on: August 22, 2020, 10:44:34 pm »
    That should fit the tray.  I think I have used Group 34 before as well.  The tray itself is quite big as far as battery trays go.  Currently I run a Napa Commercial 1100 CCA battery, basically a stock D/W series Cummins truck battery.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline dodge82273

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    Re: Max Battery Size, 92 RC
    « Reply #4 on: August 23, 2020, 04:03:08 am »
    yup group 31 , fits in the gas tray , comes in the threaded post style as well ( 3/8ths studs) as the taper type . also fits under closed hood ......
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline Chilly

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    Re: Max Battery Size, 92 RC
    « Reply #5 on: August 23, 2020, 01:12:40 pm »
    Tray on mine has tabs to hold it fore-aft.  A group 31 doesnt fit.  I'm taking tray with me to see what will fit.  No harm, NAPA is about 20 min away. 
    92 Ramcharger
    360 TBI, auto, 241 t-case
    44F, 9.25R posi, 3.54 gears (yeah, I know)
    Skyjacker 4", 33x12.5

    Offline Mojack

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    Re: Max Battery Size, 92 RC
    « Reply #6 on: August 23, 2020, 01:37:45 pm »
    The previous owner flattened those tabs on mine and had a big napa commercial battery. He then had an elastic bungie cord for a tie down. :P
    1979 Trailduster 0 cubic inches, awaiting a 440, a crusty work in progress.

    Offline Chilly

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    Re: Max Battery Size, 92 RC
    « Reply #7 on: August 23, 2020, 02:53:10 pm »
    I kinda like those tabs.  Went with NAPA group 27.  By some.wizardry slightly smaller than original but more CCA.

    And in the"Might as Well" department, sanded the tray, washed, rinsed, shot with rattle can rust converter stuff.  I'm from PA, not accustomed to serviceable battery trays.  Mostly we practice at making new ones.
    92 Ramcharger
    360 TBI, auto, 241 t-case
    44F, 9.25R posi, 3.54 gears (yeah, I know)
    Skyjacker 4", 33x12.5

    Offline Elwenil

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    Re: Max Battery Size, 92 RC
    « Reply #8 on: August 23, 2020, 04:33:24 pm »
    Flatten the tabs and you can fit the larger battery.  They don't serve much purpose once the battery is clamped down anyway.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline SuperBurban

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    Re: Max Battery Size, 92 RC
    « Reply #9 on: August 23, 2020, 06:38:46 pm »
    A group 27 is still plenty of go juice for these trucks.
    77 W200, 360/727/NP203/D44HD/D60 (Wifes Toy)
    77 M887- 318/727/NP203 D44HD/D60
    78/86 Ramcharger.  360/727/NP203 D44/9&1/4
    85/89/90 D150/W250 5.9TBI/435/241 D44HD/D60HD
    85 W350 360/727/241 D44HD/D60
    97 B3500 5.9MPFI/518 D60HD
    20 Pacifica Hybrid, 3.6 V6, EVT 1 speed trans.
    projects:
    85 Country Coach RV, 5.9 Cummins/TH475,GV od,US gear Exhaust brake,D70HD (4 wheel disk brakes, 10 lug 19.5 rims.

    Offline Chilly

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    Re: Max Battery Size, 92 RC
    « Reply #10 on: August 23, 2020, 06:57:24 pm »
    I dont have a winch or 2k watt audio amp (anymore) so a good battery that fills the tray without bending tabs is fine.  Nobody needs more than a rubber bungee until theyre in a bender and their battery ends up between their fan and radiator.  I like a battery to be secured by every advantage available.
    92 Ramcharger
    360 TBI, auto, 241 t-case
    44F, 9.25R posi, 3.54 gears (yeah, I know)
    Skyjacker 4", 33x12.5

    Offline Elwenil

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    Re: Max Battery Size, 92 RC
    « Reply #11 on: August 23, 2020, 07:16:27 pm »
    More battery is always a good thing.  ;D





    I made that out of the rails from an old bed.  The old single battery mount broke off.  You can still see the end of it under the new tray.  I welded it to the underside of the new tray to anchor is on that end, though it was mainly hanging off the core support.  I might put it in the Ramcharger someday, but I will mount it on the passenger side instead to offset the weight of everything on the driver side.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline Chilly

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    Re: Max Battery Size, 92 RC
    « Reply #12 on: August 23, 2020, 07:38:18 pm »
    This is for Project Practical.  Time and money on a secondary battery could buy half of replacement wheels without so much offset that they swing the tread into the fenders.  Or buy gas.  What problem does a second battery solve?  My current battery isnt dead because it was too small.  If I had a winch or welder I'd be liking dual battery options.
    92 Ramcharger
    360 TBI, auto, 241 t-case
    44F, 9.25R posi, 3.54 gears (yeah, I know)
    Skyjacker 4", 33x12.5

    Offline Elwenil

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    Re: Max Battery Size, 92 RC
    « Reply #13 on: August 23, 2020, 08:40:08 pm »
    I was planning a winch, but never go that far, but 2200 CCAs running a Denso starter will spin a 383 over like nothing else.  ;D

    In reality the one battery was a deep cycle and I used it to run lights and stuff with the engine off and kept the other one in reserve to start it.  Basically I could jump start myself with the flip of a switch.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline Chilly

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    Re: Max Battery Size, 92 RC
    « Reply #14 on: August 23, 2020, 08:54:40 pm »
    Im glad you ran as a redundant battery rather than hard wires in parallel, given that they appear to be different batteries.  Bad things can happen when batteries are "unequally yoked".
    92 Ramcharger
    360 TBI, auto, 241 t-case
    44F, 9.25R posi, 3.54 gears (yeah, I know)
    Skyjacker 4", 33x12.5

    Offline Chilly

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    Re: Max Battery Size, 92 RC
    « Reply #15 on: August 31, 2020, 06:12:56 pm »
    Cheap insurance.  This tray has very little rust and had a ratty old worn out battery mat.  Now its freshly painted with a new mat and new battery.  Good for another 28 years.

    92 Ramcharger
    360 TBI, auto, 241 t-case
    44F, 9.25R posi, 3.54 gears (yeah, I know)
    Skyjacker 4", 33x12.5

    Offline Chilly

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    Re: Max Battery Size, 92 RC
    « Reply #16 on: September 1, 2020, 06:08:27 am »
    Lots of opinions on preventing terminal corrosion.  Some connect dry then coat, some coat terminals then connect, and coatings include spray on sealant looking stuff, dielectric grease, or just axle grease.  I seem to recall coating with dielectric grease before connecting but experiencing slow starting until removing it.  You know how you reach an age where memories become foggy like that?

    I think I'll clean well, assemble dry with felt washers, then spray under and on top with that spray.  I could use new cables at some point.  Used to work near a shop that would build you new cables by soldering quality lead terminals to good wire.  Way better than the Chinese junk hanging on the hook at retail chains.
    92 Ramcharger
    360 TBI, auto, 241 t-case
    44F, 9.25R posi, 3.54 gears (yeah, I know)
    Skyjacker 4", 33x12.5

    Offline dodge82273

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    Re: Max Battery Size, 92 RC
    « Reply #17 on: September 1, 2020, 07:16:12 am »
    what I found out the hard way : using grease , dielectric or other wise on  taper post terminals , the terminal heats/cools the grease gets between the post and the cable end , electric flow stops , takes about 2 days .

     they corrode from the acid fumes , it comes from the junction of plastic case and lead post , the felt washers are GOOD I'd assemble then  paint the clean connection with any color rattle can I had handy . this seemed to last the longest of all attempts . this was on  group 27, 31 , 4D , 8D batterys , some older units had 8- 6 volt batterys ,over a period of 30 + years in fleet maintenance . nothing prevents it forever with lead acid batterys .
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

     

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