Dual battery system
 

Hi

I hope this is the right newsgroup. Can anyone help me with schematics or
plans for building a dual battery system for a 12v refrigerator running from
a car and the battery system?

You can mail me at

Thanks

Dual battery system
 

"Louis News" wrote in message
...
Hi

I hope this is the right newsgroup. Can anyone help me with schematics or
plans for building a dual battery system for a 12v refrigerator running
from
a car and the battery system?

You can mail me at

Thanks


Google is your friend, don't expect others to do your research on such a
basic and common subject !!


--
Regards ........... Rheilly Phoull

Dual battery system
 

"Rheilly Phoull" wrote in message ...
"Louis News" wrote in message
...
Hi

I hope this is the right newsgroup. Can anyone help me with schematics or
plans for building a dual battery system for a 12v refrigerator running
from
a car and the battery system?

You can mail me at

Thanks


Google is your friend, don't expect others to do your research on such a
basic and common subject !!

I would like to add a few questions where google couldnt help:

Assume 2 battery setup:

1. Assume one battery is full, one empty. Can you just connect them
(via switch) and charge them? Will they end up both full or one full
and the other dead?

2. Can you use different capacity for a dual setup?

Matt

Dual battery system
 

On 8 Aug 2004 16:14:47 -0700, (Matt Lang) wrote:


I would like to add a few questions where google couldnt help:

Assume 2 battery setup:

1. Assume one battery is full, one empty. Can you just connect them
(via switch) and charge them? Will they end up both full or one full
and the other dead?

Yes. They should both end up charged.

2. Can you use different capacity for a dual setup?

Ideally, batteries that are regularly used in parallel should be of
the same make, type, vintage, and usage history - even then you should
occasionally test one battery at a time, as the good battery (or
batteries) in a bank can hide a faulty one.



Matt

--
Peter Bennett, VE7CEI
peterbb4 (at) interchange.ubc.ca
new newsgroup users info : http://vancouver-webpages.com/nnq
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca

Dual battery system
 

"Peter Bennett" wrote in message
news.com...
On 8 Aug 2004 16:14:47 -0700, (Matt Lang) wrote:


I would like to add a few questions where google couldnt help:

Assume 2 battery setup:

1. Assume one battery is full, one empty. Can you just connect them
(via switch) and charge them? Will they end up both full or one full
and the other dead?

Yes. They should both end up charged.

2. Can you use different capacity for a dual setup?

Ideally, batteries that are regularly used in parallel should be of
the same make, type, vintage, and usage history - even then you should
occasionally test one battery at a time, as the good battery (or
batteries) in a bank can hide a faulty one.

This is true if they are discharged in parallel, but its not a problem when
charging.

Dual battery system
 

Jeff, Peter!

So essentially this is a nobrainer, just drain, connect and recharge at will :)

Thanks for the info!

Matt

P.S.

Peter nice GPS pages!

"Jeff Morris" wrote in message ...
"Peter Bennett" wrote in message
news.com...
On 8 Aug 2004 16:14:47 -0700, (Matt Lang) wrote:


I would like to add a few questions where google couldnt help:

Assume 2 battery setup:

1. Assume one battery is full, one empty. Can you just connect them
(via switch) and charge them? Will they end up both full or one full
and the other dead?

Yes. They should both end up charged.

2. Can you use different capacity for a dual setup?

Ideally, batteries that are regularly used in parallel should be of
the same make, type, vintage, and usage history - even then you should
occasionally test one battery at a time, as the good battery (or
batteries) in a bank can hide a faulty one.

This is true if they are discharged in parallel, but its not a problem when
charging.