Advanced alernator charging regulator.

Discussion in 'Tech/Mech General' started by scotjimland, Aug 15, 2009.

  1. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    For those who do a lot of wild camping and want to get the best charge from your alternator you may be interested in this product. If you generally use EHU or only free camp occasional then probably not ..

    Disclaimer: I have no connection, financial or otherwise with Sterling or any of their agents..

    Quote:
    Standard alternators are not designed to be good battery chargers; they are designed only to charge an engine start battery sufficiently to start the engine. Because of this inherent design problem associated with the standard regulator, a more advanced regulator is required which in effect converts the alternators from a constant voltage power supply to the latest 4-step constant current battery charger (see battery charger graphs). Because of this improvement in the alternator control system, these regulators dramatically enhance the alternator's charge rates by between 200-2000%,depending on how poor the original system is.

    Interested? read more here Sterling Power Products
     
  2. hilldweller

    hilldweller Funster Life Member

    Joined:
    Dec 5, 2008
    Messages:
    26,414
    Likes Received:
    25,064
    Location:
    Macclesfield
    Looks good to me with one proviso -- split charge relay -- SIMPLE.

    Diode block + new regulator -- COMPLEX therefore more to go wrong and less chance of a repair when miles from home. Warranty problems with new vehicle ?
     
  3. Bigtrev8xl

    Bigtrev8xl Read Only Funster

    Joined:
    Mar 31, 2009
    Messages:
    20
    Likes Received:
    0
    Location:
    Ipswich
    Hi Jim.
    Sterling also do “Battery 2 Battery Charger” which is much easier to fit because you don’t need to open up the alternator and invalidate your vehicle warranty.

    Cheers Big Trev
     
  4. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    Hi

    Yes indeed, I was aware of Bat 2 Bat product, Sterling do a great range .. Sterling Power Products: High Quality Advanced Marine and Automotive Digital Power Products

    However, I'm not clued up enough to make a objective technical comparison, reading the literature for the units they both look to do a similar job, to that end I've emailed Sterling for clarification, pros / cons of both.

    Will post the reply

    Cheers

    Jim
     
  5. Douglas

    Douglas Read Only Funster

    Joined:
    Aug 22, 2008
    Messages:
    2,837
    Likes Received:
    401
    Location:
    South Wales,
    My only experience this this kind of thing is the Aderc system that I had on my boat.

    The system worked very well, the only problem I had was with the voltage/amperage display unit. There is a rotary switch on the unit to change the various functions and the switch failed withing the first year and then the second switch fail in the same time period.

    But as a charging control unit it worked OK.

    Doug...
     
  6. sinbad1

    sinbad1 Deleted User

  7. Tony Lee

    Tony Lee Read Only Funster

    Joined:
    Sep 28, 2008
    Messages:
    274
    Likes Received:
    1
    Simple but results in very poor return on your money because you will never get to use the full available capacity of your battery.

    Best of all worlds is install a little bit of switching to run your inverter off the engine supply (Yes, via a split-charge relay) and supply your good three-stage mains charger (do you have one?) from the inverter as you drive. Uses standard components that are usually in the motorhome anyway and there are minimal problems with voltage drop or low alternator voltage.

    One Sterling and other similar DC to DC systems use a very similar approach - except that the inverter and charger are special purpose and integrated within the same (expensive) box. The one Jim mentioned for controlling an alternator is also an effective unit but does require special systems and can also be prone to voltage drops unless remote battery voltage sensing is used.
     
    Last edited: Aug 16, 2009
  8. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    Reply from Sterling which is a bit short on content nor explains why they have two products doing essentially the same job..

    that's the entire message ...
     
  9. wizzer59

    wizzer59 Funster

    Joined:
    Apr 18, 2009
    Messages:
    2,866
    Likes Received:
    2,670
    Location:
    Englishman in Mid Wales
    Hi everyone
    I have no understanding of any of this, but am very interested in anything that would make my (future) motorhome more efficient at charging the batteries,(we like wild camping)

    but I would like to know if the the alternator is working harder with this system does that mean I'm using more fuel?? or should i go and crawl back under my rock:Blush:
     
  10. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    Hi ..

    short answer yes, as they say, nowt for nowt .. but I doubt if you would notice any significant drop in MPG .. and once the batteries are full, the load will drop back to normal.. much would depend on how large a battery bank and how flat they were when you set off..

    The normal spit charge system at best only charges your battery to about 80% , so .. a 100ah battery would only be charged to 80ah giving a useful capacity (using best practice of not discharging below 50 % ) of 40 ah .. if fully charged that would increase to 50 ah , 25% more



    jim
     
    Last edited: Aug 17, 2009
  11. wizzer59

    wizzer59 Funster

    Joined:
    Apr 18, 2009
    Messages:
    2,866
    Likes Received:
    2,670
    Location:
    Englishman in Mid Wales
    Hi Jim
    Thanks for the prompt answer.

    Blimy so the standard charging systems on mh's are not very efficient at all, why isn't all this stuff fitted at mh factorys??:Doh:
     
  12. TDH

    TDH Funster

    Joined:
    Jun 22, 2009
    Messages:
    718
    Likes Received:
    337
    Location:
    Powys/Shropshire border
    I'm sorry, I'm a bit dense about all of this. My van, which I've relatively recently acquired, has an auxilliary battery under the seat in the cab. It's not wired in to the charging system so I trickle-charge it between trips. I want to be able to charge it from the vehicle's alternator. I had a look at a link somebody put up last week to VWP's site and saw a split charge relay for £15, and also a 12v 70a split charge unit for £33. Is it really as simple as buying one of these and fitting it, or am I missing the clever stuff?
     
  13. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    Simple answer COST, today vans are built to price.. same reason many don't fit a decent mains charger.. and the novice buyer is blissfully unaware .. usually too distracted by the latest colour co ordinated interior.


    Hi

    I'm surprised it has no split charge relay fitted .. however, as already discussed a spit charge system won't fully charge the leisure battery.. but much depends on your intended use, and budget.
    If you use primarily on EHU then it wouldn't be a huge benefit to fit a bat 2 bat charger, a split charge system would suffice .. on the other hand if you plan to camp off ehu then it would pay dividends..

    jim
     
  14. TDH

    TDH Funster

    Joined:
    Jun 22, 2009
    Messages:
    718
    Likes Received:
    337
    Location:
    Powys/Shropshire border
    Thanks Jim,

    My dad converted the van and probably never gave it a thought. We rarely use EHU - excuse me being thick Jim ..... what would pay dividends?

    Trevor.
     
  15. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    Hi Trevor , sorry if that wasn't clear, I was referring to The 'bat 2 bat' charger unit..

    jim
     
  16. TDH

    TDH Funster

    Joined:
    Jun 22, 2009
    Messages:
    718
    Likes Received:
    337
    Location:
    Powys/Shropshire border
    Thanks.
     
  17. don

    don Read Only Funster

    Joined:
    Apr 27, 2008
    Messages:
    26
    Likes Received:
    5
    Location:
    hingham
    We have a bat to bat charger fitted to this our 3rd M/H would'nt be withoout it,
    Leasure Batts last much longer.
    Don
     
  18. wizzer59

    wizzer59 Funster

    Joined:
    Apr 18, 2009
    Messages:
    2,866
    Likes Received:
    2,670
    Location:
    Englishman in Mid Wales
    Ya know it is occurring to me that once I have bought my nice expensive motorhome,

    to then make it into a decent long term holiday home (Bat to bat, solar, gaslow, inverters, sog's, geni's etc, etc) is going to cost me another bloody fortune:Eeek::Eeek::Doh::Doh:
     
  19. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    :Laughing::Laughing:

    yip.. it's not a motorhome ..

    it's a money black hole, an expensive mistress, an addiction, a love affair.. all rolled into one .. don't we just luv em :Laughing:
     
  20. wizzer59

    wizzer59 Funster

    Joined:
    Apr 18, 2009
    Messages:
    2,866
    Likes Received:
    2,670
    Location:
    Englishman in Mid Wales
    Yea can't wait:thumb: --------------now just got to get rid of this house!!!!!!!!!:BigGrin::BigGrin:
     
Loading...

Share This Page