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11-17-2012, 08:27 PM
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#1 (permalink) |
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Diesel Technician
Join Date: Oct 2011
Location: Northeast GA
Posts: 372
iTrader Score: 1 reviews
Old School Oil Burners (Old SOBs) Member Georgia Diesel Owners Club Member |
Batteries
Do we really need two batteries?
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1992 Suburban, J-code 6.2L from a 1986 CUCV, 700R4, NP241 9" lift with straight axle conversion, HP Dana 44 with Loc-Right in front, Dana 60 with Detroit in rear, 4.10 gears 37 x 12.50R16.5LT HUMMV tires (rolls out at 35") 2.5" true duals with Flowmaster SUV 50's with a 2.5" H-pipe just in front of the mufflers bent over the driveshaft 1984 K10 Getting ready for a nice newly refreshed 1982 (changed to a 1989) 6.2 to replace the 350 gasser |
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11-17-2012, 08:36 PM
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#2 (permalink) |
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Diesel Technician
Join Date: Aug 2012
Location: Southwestern Michigan
Posts: 104
iTrader Score: 0 reviews
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Yes. Glow plugs pull a lot of current and these high compression engines need lots of amps to rank at the right speed. Running with one battery will shorten the life of the starter.
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1996 Suburban 2500 2wd 6.5 TD (imported from Texas), Bumper mounted PMD, LubeSpec braided steel oil line kit, Rotator lightbar and hidden strobes (fire dept), Fluid Film undercoating, 202,050 miles, blah blah blah looks like any other white Suburban, parked for winter! 1983 4wd longbox, 6.2 NA, Automatic, 40k miles, fire dept vehicle Ford gasser van (for winter, front wheel drive) |
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11-18-2012, 01:33 AM
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#3 (permalink) |
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Diesel Specialist
Join Date: Aug 2011
Location: Memphis, TN 38133, USA, Earth, Milky Way
Posts: 861
iTrader Score: 1 reviews
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Not if your battery, starter, cables, & charging system are in REALLY good condition. If even one of them begins to fail, you'll be push-starting it. You wanna take that chance?
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Walk softly & carry a BIG SIX ! ! ! '97 Silverado K3500 Xcab longbed dually 10KGVWR 210Kmi FOR SALE Dual Alternator Mod, 2FSDs in grille, FFM raised, Opti-Lube, high idle switch, Curt Cl.V receiver, park sensors, hitching lights, 750W inverter, in-dash USB power, mini bed crane, all-on brights, Magnefines, updated 4WD actuator |
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11-18-2012, 10:09 AM
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#4 (permalink) |
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Diesel Master
Join Date: Mar 2012
Location: St. Paul/Minneapolis MN USA
Posts: 1,178
iTrader Score: 0 reviews
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Us northern folks need 2 but I would imagine it does not get as cold where you are so maybe you could get away with one really good one. The cold lessens the power you get from the battery not to mention makes the engine harder to turn over and then there is the it you take even before cranking from running the glows for longer when its really cold.
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96 Suburban 2500 4x4 vin F 80 Eldorado 5.7 |
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11-18-2012, 01:43 PM
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#5 (permalink) |
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Lead Moderator
Resident Coffee Addict
 
Join Date: Jun 2008
Location: Near The Coffee Maker
Posts: 11,523
iTrader Score: 0 reviews
Ontario Diesel Place Chapter Member DieselPlace.com Lifetime Premium Member |
I've run for extended periods in the hot SUMMER months with one battery to no ill effect. However, if you get any kind of cool/cold weather where you are you'll quickly find out why our trucks came equipped with two batteries.
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 Mark - Courtice, Ontario, Canada. '97 C3500 Crew Cab Long Box Dually 6.5 Turbo Diesel. Rebuilt with Navistar 506 block spring 2012 Special thanks to Racer55 and WhiteK2500 for their invaluable assistance! Commercial OTR Driver Since '95, RV'er By Weekend. Find my list of reference information HERE |
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11-18-2012, 06:42 PM
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#6 (permalink) |
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Diesel Laureate
Join Date: Feb 2006
Location: Richardson, TX
Posts: 10,286
iTrader Score: 0 reviews
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In theory, the cranking amp requirement in this truck required 2 batteries or more than 1 battery can handle.
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1995 GMC Suburban: PMD in Bumper 4" Warpspeed Exhaust
KD LP/OPS Harness Bosch Duraterm GP Heath Turbo-Master Chevron's XLP Diesel Additive |
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11-18-2012, 06:54 PM
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#7 (permalink) |
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Diesel Technician
Join Date: Oct 2011
Location: Northeast GA
Posts: 372
iTrader Score: 1 reviews
Old School Oil Burners (Old SOBs) Member Georgia Diesel Owners Club Member |
I didn't know if battery technology had gotten better since these trucks were new.
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1992 Suburban, J-code 6.2L from a 1986 CUCV, 700R4, NP241 9" lift with straight axle conversion, HP Dana 44 with Loc-Right in front, Dana 60 with Detroit in rear, 4.10 gears 37 x 12.50R16.5LT HUMMV tires (rolls out at 35") 2.5" true duals with Flowmaster SUV 50's with a 2.5" H-pipe just in front of the mufflers bent over the driveshaft 1984 K10 Getting ready for a nice newly refreshed 1982 (changed to a 1989) 6.2 to replace the 350 gasser |
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11-18-2012, 07:07 PM
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#8 (permalink) |
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Diesel Master
Join Date: Apr 2006
Location: clovis, NM
Posts: 2,111
iTrader Score: 0 reviews
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For one of these diesel engines being started with a sraight drive starter you will need 2 batteries.
With a gear reduction starter you could get away with running one big battery because I measured my suburban drawing 330-350 amps with a fluke amp clamp. Our batteries take up too much room and are located in prime realistate. Plus putting 100lb +/- 20lb so far forward isn't really the best idea for handling. I say 100 pounds of battery is 100 less pounds you can tow or carry. My answer: BYOB, for more power, a lot less weight A battery about 1/10 the weight and relocated. With a 2wd sub I would like it to be ass heavy, not nose heavy. Its starting to get a little ass heavy now that the battery weight has been pulled out of the front end.
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1984 Suburban C10, 6.2L/6.5T hybrid motor (lots of torque), Compound Turbocharged with HE351VE and T76, Intercooled, TH700, 3.08 gears w/posi P&P GM#162 heads, 506 block, DB2829 injector pump, J-code intake manifold, Pennsular diesel upper plenum. Banksturbo and HMMWV manifolds, custom cross over and adaptors made by me, 3'' stainless down pipe and 4'' straight pipe exhaust. Electric radiator fans (16''+12''+12''), Meziere electric water pump (55gpm), HD '92+ 6.5T water crossover, 2 block heaters, two G183 intake heaters, 60G plugs. http://www.dieselplace.com/forum/sho...92#post4699592 For sale: crank, manifolds, coolant pump, LB7 and 6.2 master cylinder, diesel tools, brake light lense covers, 00gauge starter cable, t-stat houseing + X-over, custom exhaust |
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11-18-2012, 07:10 PM
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#9 (permalink) | |
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Diesel Master
Join Date: Apr 2006
Location: clovis, NM
Posts: 2,111
iTrader Score: 0 reviews
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Quote:
And I have a feeling that LiFePO4 batteries will become more popular in the near future with auto makers looking for ways to save weight.
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1984 Suburban C10, 6.2L/6.5T hybrid motor (lots of torque), Compound Turbocharged with HE351VE and T76, Intercooled, TH700, 3.08 gears w/posi P&P GM#162 heads, 506 block, DB2829 injector pump, J-code intake manifold, Pennsular diesel upper plenum. Banksturbo and HMMWV manifolds, custom cross over and adaptors made by me, 3'' stainless down pipe and 4'' straight pipe exhaust. Electric radiator fans (16''+12''+12''), Meziere electric water pump (55gpm), HD '92+ 6.5T water crossover, 2 block heaters, two G183 intake heaters, 60G plugs. http://www.dieselplace.com/forum/sho...92#post4699592 For sale: crank, manifolds, coolant pump, LB7 and 6.2 master cylinder, diesel tools, brake light lense covers, 00gauge starter cable, t-stat houseing + X-over, custom exhaust |
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11-18-2012, 10:04 PM
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#10 (permalink) |
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Diesel Technician
Join Date: Sep 2012
Location: Sarasota, FL
Posts: 433
iTrader Score: 0 reviews
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My grandfather has been running a single AGM for going on three years, similar to this XSpower: http://www.sonicelectronix.com/item_...er-XP2500.html. His '93 6.5 spins over just as fast if not faster than mine with dual 850 CCA setup with 0/1 wire all around.
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[ '95 GMC C2500HD SLE 6.5TD 4L80E/G80/3.73 VIN F - Ext Cab/Long Box ] Vac pump del OPS relay mod 3" straight pipe H/O water pump 180 degree tstat Bumper mounted FSD Home made TM @ 8 PSI Lube specialists oil line's Rebuilt 506 w/ ARP main studs [ '95 Chevrolet C3500 Cheyenne 6.5TD 4L80E/G80/4.10 VIN F - Reg Cab/Util Box ] GM Goodwrench 6.5 Bone Stock! Doesn't Run! .. Yet  Rebuild Thread: http://www.dieselplace.com/forum/sho...d.php?t=469224 6.5 Rebuild Manual: http://www.johnsargent.net/sarge/65manual.pdf 6.5 Mod's (by 94C1500): http://www.johnsargent.net/sarge/65mods.pdf |
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