Home » Public Forums » GMCnet » [GMCnet] incompatability
| [GMCnet] incompatability [message #369686] |
Wed, 18 May 2022 12:56  |
Hanson Email
Messages: 110
Registered: March 2020
Karma: -1
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Senior Member |
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I have a friend who just installed a lithium battery as his house battery,
for no good reason other than long life.
His coach is a 1975 Avion, which normally has two house batteries, each
doing their separate jobs, that can be tied together thru a fuse at the 12
volt fuse panel in the bathroom.
He only has one battery in the back (the now lithium), that is picking up
all the 12 volt jobs.
I walked in and heard the buzz box cycling. I unplugged it and it still
continued to cycle so disconnected the battery.
My position is that the lithium is incompatible with the charging system,
both buzz box and alternator and should be replaced or the system be
upgraded to one that is compatible.
Input please is requested.
Dean Hanson
Fremont, Ca.
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| Re: [GMCnet] incompatability [message #369687 is a reply to message #369686] |
Wed, 18 May 2022 13:17  |
mghamms
Messages: 466
Registered: March 2016
Location: Ware, Massachusetts
Karma: 2
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Good time to ditch the buzz box.
Use a charger converter that works with the Li battery.
1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
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| [GMCnet] Re: incompatability [message #369689 is a reply to message #369686] |
Wed, 18 May 2022 13:15 |
richshoop
Messages: 190
Registered: April 2017
Karma: 0
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Senior Member |
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The lithium batteries have VERY different charging requirements, from float voltage, to charging scheme, to actual battery use! At the very least, a lithium designed charge controller needs to be used to allow the existing alternator to recharge that battery, and yes a new buzzbox that is designed for lithium battery use needs to be used.
> On 05/18/2022 10:56 AM Hanson Email wrote:
>
>
> I have a friend who just installed a lithium battery as his house battery,
> for no good reason other than long life.
>
> His coach is a 1975 Avion, which normally has two house batteries, each
> doing their separate jobs, that can be tied together thru a fuse at the 12
> volt fuse panel in the bathroom.
>
> He only has one battery in the back (the now lithium), that is picking up
> all the 12 volt jobs.
>
>
>
> I walked in and heard the buzz box cycling. I unplugged it and it still
> continued to cycle so disconnected the battery.
>
> My position is that the lithium is incompatible with the charging system,
> both buzz box and alternator and should be replaced or the system be
> upgraded to one that is compatible.
>
> Input please is requested.
>
> Dean Hanson
>
> Fremont, Ca.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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| [GMCnet] Re: incompatability [message #369690 is a reply to message #369686] |
Wed, 18 May 2022 13:19 |
Terence Taylor
Messages: 12
Registered: July 2020
Karma: 0
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Junior Member |
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Lithium batteries DO require a different converter that is designed for them, The buzz box will destroy the Lithium batteries pretty quickly. As to the alternator, Lithium batteries can draw a lot of current when charging and that can damage the alternator. There are current limiting DC-DC converters made to address this issue.
On Wednesday, May 18, 2022, 10:56:43 AM PDT, Hanson Email wrote:
I have a friend who just installed a lithium battery as his house battery,
for no good reason other than long life.
His coach is a 1975 Avion, which normally has two house batteries, each
doing their separate jobs, that can be tied together thru a fuse at the 12
volt fuse panel in the bathroom.
He only has one battery in the back (the now lithium), that is picking up
all the 12 volt jobs.
I walked in and heard the buzz box cycling. I unplugged it and it still
continued to cycle so disconnected the battery.
My position is that the lithium is incompatible with the charging system,
both buzz box and alternator and should be replaced or the system be
upgraded to one that is compatible.
Input please is requested.
Dean Hanson
Fremont, Ca.
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| [GMCnet] Re: incompatability [message #369692 is a reply to message #369690] |
Wed, 18 May 2022 17:31 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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Jerry Work did a nice presentation about this a few years ago. A battery isolation manager (?) will keep the alternator from burning up and the buzz box may be compatible or may not.
I’ll look for the link to that presentation.
Big fan of lithium batteries. Also a big fan of lottery winnings.
Have little experience with either.
> On May 18, 2022, at 11:19 AM, Terence Taylor wrote:
>
> Lithium batteries DO require a different converter that is designed for them, The buzz box will destroy the Lithium batteries pretty quickly. As to the alternator, Lithium batteries can draw a lot of current when charging and that can damage the alternator. There are current limiting DC-DC converters made to address this issue.
>
> On Wednesday, May 18, 2022, 10:56:43 AM PDT, Hanson Email wrote:
>
> I have a friend who just installed a lithium battery as his house battery,
> for no good reason other than long life.
>
> His coach is a 1975 Avion, which normally has two house batteries, each
> doing their separate jobs, that can be tied together thru a fuse at the 12
> volt fuse panel in the bathroom.
>
> He only has one battery in the back (the now lithium), that is picking up
> all the 12 volt jobs.
>
>
>
> I walked in and heard the buzz box cycling. I unplugged it and it still
> continued to cycle so disconnected the battery.
>
> My position is that the lithium is incompatible with the charging system,
> both buzz box and alternator and should be replaced or the system be
> upgraded to one that is compatible.
>
> Input please is requested.
>
> Dean Hanson
>
> Fremont, Ca.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| [GMCnet] Re: incompatability [message #369693 is a reply to message #369689] |
Wed, 18 May 2022 17:38 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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Find it under
Heart/Lung Transplant for your GMC at
HTTPS://www.gmcmi.com/technical-presentations-papers/
> On May 18, 2022, at 3:31 PM, Larry Davick wrote:
>
> Jerry Work did a nice presentation about this a few years ago. A battery isolation manager (?) will keep the alternator from burning up and the buzz box may be compatible or may not.
>
> I’ll look for the link to that presentation.
>
> Big fan of lithium batteries. Also a big fan of lottery winnings.
> Have little experience with either.
>
>> On May 18, 2022, at 11:19 AM, Terence Taylor wrote:
>>
>> Lithium batteries DO require a different converter that is designed for them, The buzz box will destroy the Lithium batteries pretty quickly. As to the alternator, Lithium batteries can draw a lot of current when charging and that can damage the alternator. There are current limiting DC-DC converters made to address this issue.
>>
>> On Wednesday, May 18, 2022, 10:56:43 AM PDT, Hanson Email wrote:
>>
>> I have a friend who just installed a lithium battery as his house battery,
>> for no good reason other than long life.
>>
>> His coach is a 1975 Avion, which normally has two house batteries, each
>> doing their separate jobs, that can be tied together thru a fuse at the 12
>> volt fuse panel in the bathroom.
>>
>> He only has one battery in the back (the now lithium), that is picking up
>> all the 12 volt jobs.
>>
>>
>>
>> I walked in and heard the buzz box cycling. I unplugged it and it still
>> continued to cycle so disconnected the battery.
>>
>> My position is that the lithium is incompatible with the charging system,
>> both buzz box and alternator and should be replaced or the system be
>> upgraded to one that is compatible.
>>
>> Input please is requested.
>>
>> Dean Hanson
>>
>> Fremont, Ca.
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Re: incompatability [message #369694 is a reply to message #369693] |
Wed, 18 May 2022 19:42 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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I recently converted my house batteries to Lithium, so I have had to deal with these issues. I have three charging sources, the usual two, plus the solar. I had to install a LIBIM (battery intermittent manager) to keep from burning up my alternator when the engine is running, I have a Progressive Dynamics PD-9245, which has basically the correct charging parameters for the LiFePo4 batteries, but will not really charge the batteries fully, but my solar controller can be (and is) adjusted to fully charge the batteries (2 ea 100 amp). According to the tech support guys at Battle Born, my system should work just fine.
These are the minimum mods that need to be done to make proper use of the lithium batteries. Another, probably better mod would be to substitute a battery to battery charger in place of the LIBIM. It would regulate the charge to the house battery more consistently than the intermittent charge (15 minutes on then 20 minutes off).
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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