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03-03-2018, 09:26 AM
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#1
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Member
Join Date: Feb 2016
Posts: 82
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Battery Question
I have a 2015 Windriver 250RDSW, my batteries are on their last legs. I was originally going to replace with Lithium, but the cold weather charging thing has me rethinking that. Can anyone tell me if two Trojan 105 6volts will fit on the Battery tray without modification?? Thanks ahead of time for any insight.
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03-03-2018, 09:35 AM
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#2
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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Who better to answer this question than you with a measuring tape? What batteries do you presently have installed?
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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03-03-2018, 09:37 AM
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#3
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Member
Join Date: Feb 2016
Posts: 82
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12 volt standard deep cycle.
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03-03-2018, 09:41 AM
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#4
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Member
Join Date: Feb 2016
Posts: 82
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FYI just looking for members with my model if they had any problems with placement on the tray.
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03-03-2018, 10:48 AM
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#5
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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Quote:
Originally Posted by Blackbelle
12 volt standard deep cycle.
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If you go to this link, you'll see that 'standard' doesn't mean anything, each battery 'group' has different dimensions.
Like I said, measurement with a tape measure is the only sure way to know what space you have before shopping for new batteries.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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03-03-2018, 10:52 AM
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#6
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Senior Member
Join Date: Jul 2017
Posts: 2,582
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Quote:
Originally Posted by Blackbelle
12 volt standard deep cycle.
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That doesn't tell us anything as they come in various dimensions.
Here's a link to a 105 data sheet. It would be quicker to just measure your battery tray than waiting to find out if by chance anyone has your particular trailer and battery combo. Cheers.
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03-03-2018, 07:43 PM
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#7
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Member
Join Date: Feb 2016
Posts: 82
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Copy that thank you for the info
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03-04-2018, 05:32 AM
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#8
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Senior Member
Outdoors RV Owners Club
Join Date: Dec 2014
Location: Ontario Canada
Posts: 1,940
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Quote:
Originally Posted by Blackbelle
I have a 2015 Windriver 250RDSW, my batteries are on their last legs. I was originally going to replace with Lithium, but the cold weather charging thing has me rethinking that.
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Have you considered moving the sealed batteries inside so they are kept warm?
All batteries, lithium and lead, lose capacity as the temperature drops, as chemical reactions are sensitive to temperature.
Trojan's T105RE loses about 30% capacity at freezing, and they also say "At temperatures below 32°F (0°C) maintain a state of charge greater than 60%."
You can still discharge and store LiFePO4s below freezing, but you shouldn't charge them. Also I see that Battleborn claims they can charge theirs down to 25F before the BMS stops the charge.
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2014 Timber Ridge 240RKS, 70K miles
690W Rooftop + 340W Portable Solar, 215Ah GC2s@24V
2016 Ram 2500 CTD 4x4 RegCab SLT, 10-11 mpgUS tow
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03-04-2018, 06:12 AM
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#9
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Senior Member
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 24,024
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I too recommend a Tape Measure
The T-105 is a "GC-2" Class. this means that the footprint is almost identical to a Group 24... but they are TALLER. So make sure you have the headroom.
SAM's has a nicer price tag than Trojan. Yes Trojan's are better but that much better... I don't think so.
I have DEKA.. Made 100% in the USA
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Home is where I park it!
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03-04-2018, 09:01 AM
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#10
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Member
Join Date: Feb 2016
Posts: 82
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Thanks for the information. Is anyone using the 6 volt interstate batteries from Costco? 81 each isn't bad compared to 128 for Trojans.
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03-04-2018, 09:19 AM
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#11
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Senior Member
Outdoors RV Owners Club
Join Date: Aug 2017
Location: Prince George, BC, Canada
Posts: 329
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There are few different models of the GC2 Interstate batteries. I've used them for the last 3 TT and never had an issue with them. The last set was 6 years old and still had 91% capacity according to the midtronics capacitance tester that I borrowed from work. We have a shorter season than our more southern brethren, so this will make a difference on the cycle count. I do admit that I treat my batteries quite carefully and never let them run down below 50%. YMMV
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2016 ORV TR 240RKS, 2015 GMC 2500HD 6.0 SLE E-Cab
Daryl B.
Of all the things I've lost in Life... I miss my mind the most
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03-04-2018, 11:40 AM
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#12
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Senior Member
Outdoors RV Owners Club
Join Date: Oct 2014
Posts: 3,539
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I am using the Interstate GC2s from Costco. Two of them will fit easily with a few inches to spare. Mine are mounted in individual Noco boxes I got from Batteries Plus for about $12 each.
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2020 F28 RKS Titanium
2017 Creekside 23 RBS Sold
2016 F250 Super Crew XLT Overworked
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03-04-2018, 01:32 PM
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#13
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Senior Member
Forest River Owners Club Ford Super Duty Owner
Join Date: Jul 2012
Location: So Calif
Posts: 3,522
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Interstate GC 2 (2) for last 14 months....no issues. Keep them on smart charger 24/7.
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2020 Coachmen Leprechaun 270QB (COA Member)
Jeep Wrangler toad for the dirt
"Well done is better than well said"....Ben Franklin
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03-04-2018, 05:15 PM
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#14
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Senior Member
Join Date: Dec 2017
Location: Southern California
Posts: 557
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What are people's opinions of these?
GPL-4CT - Lifeline Batteries
My soon-to-be-here trailer has a 4 battery tray and 320W of rooftop solar. I was thinking of getting 4 of these but that's an extra 264 lbs. on the tongue...
I'm still debating lithium batteries but they seem like they require a lot of monitoring.
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2019 ORV Creekside 21DBS
2018 Ram 2500 Diesel Mega Cab 4x4, AEV Lift/Wheels, 37" Toyo RTs, ARB On-Board Air, Snugtop XV
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