small genne just for charging batteries
 

small genne just for charging batteries

Started by sledhead, February 04, 2018, 06:58:06 PM

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sledhead

as I right this I am sitting in the coach running my 12 k diesel genne charging up my 6 gulf cart batteries as we had a break in the weather and made it to Florida early and have no pole power until tuesday .

kind of over kill because the temp . is nice and I like the windows open so not using very much power other then the battery charger and it is to the point that they are only getting 45 amps from the charger . batteries are about 97 % charged as per my bogart gauge so would it be a dumb idea to have a small yamaha 2000 gas genne that I could move it to a place that makes little noise ( in the back of my truck ) and run a extension cord to do the final charge and it could run the fridge as well . rather then run the big diesel genne .

any ideas ?

thanks   Dave
dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
2000 featherlite vogue vantare 550 hp 3406e  cat
1875 lbs torque  home base huntsville ontario canada

Ed Hackenbruch

Get a Honda 1000 or 2000, easy on fuel, one of the quietest around. :) 
Used to own a 1968 MCI 5A and a 1977 5C.

chessie4905

If you want to keep the cost down for this, Harbor Freight has copycat models pretty reasonable priced. Otherwise, go with a whisper quiet Honda of same capacity.
GMC h8h 649#028 (4905)
Pennsylvania-central

bobofthenorth

Several years ago I saw a fuel cell at the Seattle boat show.  It was absolutely silent.  I haven't paid any attention to that technology but it might be an option.  As I recall it was relatively low power output but probably adequate for charging batteries.  It also only ran on methanol (as I recall anyway) so that would be about as convenient as hip pockets in long underwear but the technology has likely advanced.  Might be worth a look.
R.J.(Bob) Evans
Used to be 1981 Prevost 8-92, 10 spd
Currently busless (and not looking)

The last thing I would ever want to do is hurt you.
Its the last thing but its still on the list.

Utahclaimjumper

Utclmjmpr  (rufcmpn)
EX 4106 (presently SOB)
Cedar City, Ut.
72 VW Baja towed

birdarchitect26

I agree with above, a simple 1-2 panel/ $10 charge controller solar setup would keep them charged up, you could mount it on the roof or even make it something you pull out from time to time during down season.

J
1973 MC7 Challeger
8V92Ta MCI conversion

Gary Hatt - Publisher BCM

I agree, running a big genset to just charge your batteries is overkill and will generate excess heat and also prematurely wear it out.  I have also thought of installing a second genset, probably a 1 KW Honda to run primarily to charge the batteries. 

If I was designing a bus from scratch I may consider this because then I could plan on a way to mount it so I don't have to tether it with a big chain and I could make space in a safe place for a large gas tank.  That is one of my issues, I don't like carrying plastic cans of fuel in my bus and don't like the look of carrying fuel cans on the back of my Eagle. 

Saying all that, I am seriously considering solar now because solar has been better perfected, is reasonably priced, and is relatively easy to install and are great at keeping your batteries topped off which is the best way to maintain them.
1999 Prevost H3-45
Gary@BusConversionMagazine.com

sledhead

solar panels would work if I was in the sun but we try to park under trees if we can

I looked at a comparison of the yamaha and the honda and they are almost the same but the yamaha has a longer run time on 1/4 load on the 2000 watt units

for the 45 lbs and the size it would be nice as a small back up unit for the rv

Dave
dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
2000 featherlite vogue vantare 550 hp 3406e  cat
1875 lbs torque  home base huntsville ontario canada

Scott & Heather

Go Honda Dave. You won't regret it. I have abused the living daylights out of my EU3000is units and they keep on ticking. Get an EU2000. Get the BERG gas extending system and call it a day.


Sent from my iPhone using Tapatalk Pro
Scott & Heather
1984 MCI 9 6V92-turbo with 9 inch roof raise (SOLD)
1992 MCI 102C3 8v92-turbo with 8 inch roof raise CURRENT HOME
Click link for 900 photos of our 1st bus conversion:
https://goo.gl/photos/GVtNRniG2RBXPuXW9

sledhead

pole power is on !

thanks for the replies  now it is time to do the research to see what is the best way to go 

Dave
dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
2000 featherlite vogue vantare 550 hp 3406e  cat
1875 lbs torque  home base huntsville ontario canada

bigred

Harbor also sells a 100 watt solar set up for charging batteries for $149.00 if you don''t want to fool with the gas situation.
Rhet Raby           137 Elk Mtn Rd       Asheville N c 28804             1993 Prevost XL

TomC

100 watts at 14.1 volts is just over 7 amps- not enough to charge, but enough to maintain.
Tom & Donna Christman. 1985 Kenworth 40ft Super C with garage. '77 AMGeneral 10240B; 8V-71TATAIC V730.

Oonrahnjay

Quote from: TomC on February 07, 2018, 07:36:10 AM100 watts at 14.1 volts is just over 7 amps- not enough to charge, but enough to maintain. 

     Two problems - 1) We're talking Harbor Freight here, 2) Most places say "derate" solar numbers by about 75% meaning that on the odd day that a HF unit is working at all, expect about 75 watts.  "Hardly" enough to maintain a useful-size battery bank.
Bruce H; Wallace (near Wilmington) NC
1976 Daimler (British) Double-Decker Bus; 34' long

(New Email -- brucebearnc@ (theGoogle gmail place) .com)

bobofthenorth

Quote from: TomC on February 07, 2018, 07:36:10 AM
100 watts at 14.1 volts is just over 7 amps- not enough to charge, but enough to maintain.

100 watts is just something to stub your toe on when you're on the roof.  Don't bother.
R.J.(Bob) Evans
Used to be 1981 Prevost 8-92, 10 spd
Currently busless (and not looking)

The last thing I would ever want to do is hurt you.
Its the last thing but its still on the list.

Oonrahnjay

Quote from: bobofthenorth on February 07, 2018, 08:18:48 AM100 watts is just something to stub your toe on when you're on the roof.  Don't bother. 

    Roger that ...
Bruce H; Wallace (near Wilmington) NC
1976 Daimler (British) Double-Decker Bus; 34' long

(New Email -- brucebearnc@ (theGoogle gmail place) .com)