charging

  1. RVBarry

    House to chassis ground with ACR?

    Hi Dick, this has got me wondering... If I have a Blue Sea ML-ACR (7622), AND a manual disconnect switch on the house battery AND a solar disconnect, AND a shore breaker, And I turn all four of those off, then is it safer to use a chassis grounding point for house charging, or straight to the...
  2. C

    *stranded* Alternator not charging

    Long time lurker, first time poster :). Still searching through the forum for answers to this, but want to post in case I miss something. Luckily I made it to the O'Reileys in Dripping Springs, TX so I can get parts, etc - but I'm trying to get back to MN and obviously need a charging system...
  3. L

    Alternators on 3 Liter Diesels

    Hello, Looking for information on how many horsepower I can safely pull off a 3 liter with an alternator. Any input on alternator capacity and it’s correlation to maximum amp hour size for a lithium iron phosphate battery? How large will my alternator need to be to keep a 300ah battery happy...
  4. M

    Voltage Sensitive Relay Advice Needed. What am I missing?

    I need help to safely charge my house battery off my alternator when my van is running. At issue is the fact that I have a 220A alternator, and I'm having trouble finding an intelligent relay that can handle 220 amps. Furthermore, it looks like I need 4/0 gauge wire to handle a 220A load over a...
  5. C

    Adding a second battery

    I have a second battery in back to run my led lights and a water pump. It is hooked up to a magnuson inverter/charger. The only way to charge this battery is with shore power which is a pain. Can I wire this battery some how to charge off the alternator? Is it as simple as connecting it to the...
  6. N

    REDARC BCDC1240D vs Renogy DCC50S (DC-DC Chargers with MPPT)

    I am fairly new to the forum and appreciate all the help offered by the community. I have a VS30 that is in production and am planning on completing out the initial steps of the build myself. I am planning on running a 100-150 AH LiFePO4 battery, located near the drivers side rear wheel...
  7. J

    Electrical Diagram Review & Questions

    Been reading the forum for a while now and finally getting my build going, I picked up a bunch of parts on Black Friday this year and trying to arrange them in a way that works now which is probably not the best way to approach, but hey... This design borrows liberally from some of the active...
  8. E

    2017 USB Port Output voltage

    Hello Everyone, I am 45 days new into the world of everything Sprinters. I am undergoing a Do-It-Yourself (Minor compared to most of you) up-fit. My background is that of a General Contractor and cabinet maker who also has some collage (Though be it 38 years old) in electrical engineering...
  9. U

    Charging Issues?

    So I dug around here and can’t quite tell if my charging system is operating “normally”. Just last month I was unable to start the engine. It cranked but didn’t quite have enough power to get going. It had sat for about 3-4 weeks and it was in the 20’ range so it was a bit of a worst case...
  10. H

    Does anyone have the stock Alternator details for my 2016 Sprinter Cargo?

    Hi friends. My name is Will. I'm new to the forum. We just purchased a 2016 MB Sprinter Cargo 170 WB. It has the 6 cylinder turbo diesel. Does anyone know the specs for the Alternator? I've seen 180 amp or 220 amp listed on some threads. I'm also wondering what size Blue Sea ACR I'd use...
  11. T

    Chassis Battery Charging

    I am interested in learning more about keeping the chassis battery fully charged on a 2014-15 Plateau XLMB. I read in other postings on the Sprinter-Forum about various methods and one that caught my eye was to use shore power for the coach (I think the post referred to a Fleetwood) to provide...
  12. H

    KISAE DMT1230 Solar + Alternator Charge controller details

    I found this thing while searching for battery charging options: http://www.kisaepower.com/products/battery-chargers/model-dmt-1230/ A few advantages over the similar CTEK d250s dual: - charge voltage is adjustable - higher rated (30A) output It's pretty new so I haven't seen to much written...
  13. H

    Ctek D250S Dual Questions

    Anyone using these know the answers? Is the charge voltage adjustable? Many of the AGM GC2 batteries I'm looking at recommend charging at 14.7 to 14.9 volts, but the manual suggests the D250S is set to 14.4. How smart is the starter battery maintenance? If I attach the temperature sensor to...
  14. skyeg3

    Alternator/Battery Charging Issues

    A few days ago we tried to start my van after two weeks of it sitting and the battery was dead. We have a phantom draw from a wheelchair lift that is a known issue which is why we have another battery wired into the system to double the capacity. Anyway- We tried using a 110 wall plug charger on...
  15. N

    Auxiliary Battery Not Charging

    I have an 2009 3500 sprinter with an auxiliary battery under the hood. It is not being charged, The starting battery which is under the drivers feet is charging fine. The auxiliary battery runs the roof AC, the automatic side door and the interior lights. I have replaced the auxiliary battery...
  16. R

    Using excess solar energy to charge 2nd battery

    i have a single 245w solar panel charging a 8d battery. The 8d battery runs a fridge full time, plus 1000w inverter when needed. This setup works well, fully charging the battery during my usage cycles. I have the factory aux battery to power other electric consumers. What I'd like to do is use...
  17. Deancm

    Autopsy: Infamous "Y" cable from alternator to starter to battery

    I have a NCV3 2500 3L V6 built June 2008. As preventive maintenance I replaced the infamous "Y" Cable. Attached are photos of the old cable and one of the newly installed cable. 1. Shows the 300 Amp fuse shrink wrap cut open. There is a serious design problem here. Note where my fingers are...
  18. Knit

    House batteries not charging on shore power

    I need help diagnosing house batteries not charging while plugged in to 120v service. I have a 2013 RS. All electrical seemed to be working fine until I had the free solar system that was provided by Roadtrek as part of the purchase and was installed by a qualified dealer. It took multiple 200...
  19. T

    Xantrex Inverter/Charger

    Xantrex Inverter/Charger I am starting a new thread following my "Battery Charging Issues" thread. I have a 2013 Itasca Reyo with an Onan 3.6kw generator, a Schumacher Mity-Mite RVCDP55 power center (converter, charger, AC breakers, DC fuses), and a Xantrex xm 1000 1000 watt inverter. I have...
  20. T

    Battery Charging Issues

    Battery Charging Issues Advice requested! I have a 2013 Itasca Reyo which I bought new earlier this year. It has an Onan 3.6K generator and two Napa 8042 deep cycle batteries, reserve capacity 120 minutes, which I calculate to 50 amp-hr each (120/60 X 25 = 50). While on a 5 day "boondock," I...

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