A few day after opening my mouth about deep cycle batteries not being
for EV's, . . life put my foot back in it .
I got a chance to work on a NEV called the coco (can be seen at this addres=
s}
http://www.prosserrv.com/Electric_Vehicles.html
http://www.prosserrv.com/Electric_Vehicles.html
and it had 6 Trojan 1275 12v flooded deep cycle batteries . The
batteries where all sitting at about 2v or less and the charger did
not work. I hooked the batteries up to another 72v pack (saw about 2
amps current flow at the start) and pulled the charger out . The only
thing wrong with the charger was one of the input ac wires was burned
off . Much to my surprise the batteries seem to come back after
sitting a day in parallel with the other NEV's pack . After about 12
hours I did plug in the other NEV's charger to get the voltage up
after all seem ok . The NEV has two gauges one says 10x A and the
numbers start at -5 and go to 30 ( If I remember right) and the other
is 0 to 85 in three colors red yellow and green. So after the first
charge I take it for a ride and this thing is like a mini car , Not at
all like a golf cart . It zips up to 25 mph but no faster , at 25 the
10x gauge says 5 and going up some steep hills ( I'm not in Florida )
I saw 12 for a short time as it lugged down to 15 mph . The other
meter which is some kind of volt meter was always in the green , ever
after 10 miles of driving . So back to the shop to fix the charger , I
took a current reading on the buggy with the key off and saw 50 ma so
this guy losses about 1 ah a day to keep the radio lit. When the
charger went down this kept pulling the batteries down . The chargers
back in and seems to work so I leave it plugged in and go back to the
s 10 conversion ( another story) and check on it form time to time .
I took a voltage drop on one of the cables when I first trickle
charged it so I kind of have a idea of what current its charging at ,
like about 20 amps ( this is a ruff guess , I got a base line ,
measuring the mila volt drop on one of the battery cables and then
measuring the amps with a amp meter when I first trickle charged it).
I checked on it after work and the batteries where at 14.1 v and the
charger still pumping full blast , along with the not to strong smell
of batteries cooking , I decided to unplug it for the night. This next
day I re plugged it in and after a hour the voltage was up to 14.5 but
still pumping full amps . I unplug it and went for another ride ..
Back again charging and now the charger seems to be cutting back the
amps once it got over 14.5 and this time the charge does cut off after
a few hours. I would not have thought these batteries would come back
when I saw them sitting at 2volts . I've seen the hawker agm's come
back a few times but flooded batteries have not done so well for me .
These where 6 months old so that may have helped .
After my not so nice post about warrantying deep cycle batteries
, I looked around at the different batteries that are good for EV's
like the hawker's and the yellow tops , the blue excide orbitals , and
they are all called deep cycle , and trolling battery it said , so how
would somebody know which batteries where good and which where not .
We just talk among are self's , we try them out , and its from a lot
of past experience that tells us not to believe everything the
battery sales man at the local store says .
Steve Clunn
--
Tomorrows Ride TODAY !
Visit our shop web page at: www.Greenshedconversions.com
_______________________________________________
| REPLYING: address your message to [email protected] only.
| Multiple-address or CCed messages may be rejected.
| UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
| OTHER HELP: http://evdl.org/help/
| OPTIONS: http://lists.sjsu.edu/mailman/listinfo/ev
for EV's, . . life put my foot back in it .
I got a chance to work on a NEV called the coco (can be seen at this addres=
s}
http://www.prosserrv.com/Electric_Vehicles.html
http://www.prosserrv.com/Electric_Vehicles.html
and it had 6 Trojan 1275 12v flooded deep cycle batteries . The
batteries where all sitting at about 2v or less and the charger did
not work. I hooked the batteries up to another 72v pack (saw about 2
amps current flow at the start) and pulled the charger out . The only
thing wrong with the charger was one of the input ac wires was burned
off . Much to my surprise the batteries seem to come back after
sitting a day in parallel with the other NEV's pack . After about 12
hours I did plug in the other NEV's charger to get the voltage up
after all seem ok . The NEV has two gauges one says 10x A and the
numbers start at -5 and go to 30 ( If I remember right) and the other
is 0 to 85 in three colors red yellow and green. So after the first
charge I take it for a ride and this thing is like a mini car , Not at
all like a golf cart . It zips up to 25 mph but no faster , at 25 the
10x gauge says 5 and going up some steep hills ( I'm not in Florida )
I saw 12 for a short time as it lugged down to 15 mph . The other
meter which is some kind of volt meter was always in the green , ever
after 10 miles of driving . So back to the shop to fix the charger , I
took a current reading on the buggy with the key off and saw 50 ma so
this guy losses about 1 ah a day to keep the radio lit. When the
charger went down this kept pulling the batteries down . The chargers
back in and seems to work so I leave it plugged in and go back to the
s 10 conversion ( another story) and check on it form time to time .
I took a voltage drop on one of the cables when I first trickle
charged it so I kind of have a idea of what current its charging at ,
like about 20 amps ( this is a ruff guess , I got a base line ,
measuring the mila volt drop on one of the battery cables and then
measuring the amps with a amp meter when I first trickle charged it).
I checked on it after work and the batteries where at 14.1 v and the
charger still pumping full blast , along with the not to strong smell
of batteries cooking , I decided to unplug it for the night. This next
day I re plugged it in and after a hour the voltage was up to 14.5 but
still pumping full amps . I unplug it and went for another ride ..
Back again charging and now the charger seems to be cutting back the
amps once it got over 14.5 and this time the charge does cut off after
a few hours. I would not have thought these batteries would come back
when I saw them sitting at 2volts . I've seen the hawker agm's come
back a few times but flooded batteries have not done so well for me .
These where 6 months old so that may have helped .
After my not so nice post about warrantying deep cycle batteries
, I looked around at the different batteries that are good for EV's
like the hawker's and the yellow tops , the blue excide orbitals , and
they are all called deep cycle , and trolling battery it said , so how
would somebody know which batteries where good and which where not .
We just talk among are self's , we try them out , and its from a lot
of past experience that tells us not to believe everything the
battery sales man at the local store says .
Steve Clunn
--
Tomorrows Ride TODAY !
Visit our shop web page at: www.Greenshedconversions.com
_______________________________________________
| REPLYING: address your message to [email protected] only.
| Multiple-address or CCed messages may be rejected.
| UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
| OTHER HELP: http://evdl.org/help/
| OPTIONS: http://lists.sjsu.edu/mailman/listinfo/ev
