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70 Posts
Discussion Starter #1
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

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70 Posts
Discussion Starter #2
>( I'm not in Florida )
So where do you live now Steve?


----- Original Message ----
From: Steve Clunn <[email protected]>
To: [email protected]
Sent: Thu, October 14, 2010 7:28:17 PM
Subject: [EVDL] NEV / deep cycle batteries

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 address}
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

_______________________________________________
| REPLYING: address your message to [email protected] only.
| Multiple-address or CCed messages may be rejected.
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Registered
Joined
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70 Posts
Discussion Starter #3
Rod, your not up to date, Steve and Audrey have been touring the USA
traveling from "Gig" to "Gig" as they circumnavigate the states, like
Magellan looped the world 500 years ago. They are planning on coming Home to
Florida for Thanksgiving and avoiding heavy snow. (Many people go swimming
in Florida during Winter Holidays) Many of us are looking forward to their
return to where the weather suites our clothes, Cause I don't wear Parkas
any more.
Regards,
*Dennis Lee Miles* (Director) *E.V.T.I. inc*.
*www.E-V-T-I-Inc.COM <http://www.e-v-t-i-inc.com/> *(Adviser)*
EVTI-EVAEducation Chapter
*
Phone (813) ID4 - E V T I or [813] 434 - 3884
Initial demand (computed by extrapolating the reservations for GM Volt and
Nissan Leaf,) shall exceed 200,000 vehicles in 2010 and 2011. However only
50,000 vehicles will be
marketed, so a LARGE demand for Nice Newer Conversions is predicted!
=================================================================

Rod Hower <[email protected]> wrote:

> >( I'm not in Florida )
> So where do you live now Steve?
>
>
> ----- Original Message ----
> From: Steve Clunn <[email protected]>
> To: [email protected]
> Sent: Thu, October 14, 2010 7:28:17 PM
> Subject: [EVDL] NEV / deep cycle batteries
>
> 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
> address}
> 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
>
> _______________________________________________
> | 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
>



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Joined
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70 Posts
Discussion Starter #4
Dennis,
Thanks for the update, didn't know Steve was doing a tour.
I always liked Steve and his enthusiasm, but didn't see anything on his web site
about the tour.
http://www.grassrootsev.com/
I didn't very long for a link to this activity, perhaps you could provide one?
Thanks,
Rod
P.S. Hopefully Steve has a generator or windmill on the hood to keep the car
charged :)
(inside joke, Steve had a windmill contest years ago to make light of the stupid
questions people
often asked about EV's. People that have been at this for the past 20 years or
more like Steve and I know
what I'm referring to).


----- Original Message ----
From: Dennis Miles <[email protected]>
To: Electric Vehicle Discussion List <[email protected]>
Sent: Thu, October 14, 2010 8:17:29 PM
Subject: Re: [EVDL] NEV / deep cycle batteries

Rod, your not up to date, Steve and Audrey have been touring the USA
traveling from "Gig" to "Gig" as they circumnavigate the states, like
Magellan looped the world 500 years ago. They are planning on coming Home to
Florida for Thanksgiving and avoiding heavy snow. (Many people go swimming
in Florida during Winter Holidays) Many of us are looking forward to their
return to where the weather suites our clothes, Cause I don't wear Parkas
any more.
Regards,
*Dennis Lee Miles* (Director) *E.V.T.I. inc*.
*www.E-V-T-I-Inc.COM <http://www.e-v-t-i-inc.com/> *(Adviser)*
EVTI-EVAEducation Chapter
*
Phone (813) ID4 - E V T I or [813] 434 - 3884
Initial demand (computed by extrapolating the reservations for GM Volt and
Nissan Leaf,) shall exceed 200,000 vehicles in 2010 and 2011. However only
50,000 vehicles will be
marketed, so a LARGE demand for Nice Newer Conversions is predicted!
=================================================================

Rod Hower <[email protected]> wrote:

> >( I'm not in Florida )
> So where do you live now Steve?
>
>
> ----- Original Message ----
> From: Steve Clunn <[email protected]>
> To: [email protected]
> Sent: Thu, October 14, 2010 7:28:17 PM
> Subject: [EVDL] NEV / deep cycle batteries
>
> 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
> address}
> 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
>
> _______________________________________________
> | 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
>



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Registered
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70 Posts
Discussion Starter #5
Steve Clunn wrote: =


> 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 address}
> 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 . =


Don't be too quick to assume you were wrong... The Trojan T1275 *is* a tru=
e deep cycle traction battery, just like the 6V and 8V floodies. Large num=
bers of them are used in 48V golf carts.

It is _not_ a dual-purpose marine/RV/trolling battery, even though it is si=
milar in capacity to a group 31 flooded.

I've heard it uses the same plates as the 6V and 8V golf floodies, and can =
certainly attest to the fact that it must be charged like a 6V floodie rath=
er than a Group 31 if you want it to remain happy.

Cheers,

Roger.

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Discussion Starter #6
Roger,

what is the difference in charging between a group 31 and a 6V floodie? Other than a different end voltage I assumed the process is the same?

Peter Flipsen Jr

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Discussion Starter #7
[email protected] wrote:

> what is the difference in charging between a group 31 and a
> 6V floodie? Other than a different end voltage I assumed the
> process is the same?

I use the same charge voltage for both, but for a 6V floodie I would finish with a constant current of about 4A (about 2% of the C/20 capacity of 220Ah), while for a group 31 floodie I would finish with a constant current of about 2A.

Cheers,

Roger.



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