Battery Chne

kidkasha wrote:
1999 Fleetwood Discovery. Is it possible to chancy 4 6 volt batteries the six volt batteries to 2 12 volt batteries? Has anyone done this successfully, and what are there any issues.

Like said previously, I successfully changed out four wet 6's to four AGM 12's (group 24) but only to restore originality and might have lost a smidgen of power in the process. You most definitely will and more than a smidgen, in fact.
Your wiring will go from a series/parallel connection to a strictly parallel hookup is all.
Yep, some wire left over, but in my case, I had to make up two 3/0 jumpers for completing the process.

Do I need a deep cycle. I looked at AGM batteries and they are not deep cycle

full_mosey wrote:
tropical36;

Better AGM and better price.

Duracell® AGM Golf Car Battery - Group Size GC2

HTH;
John

Yes, you're right and have always bought golf cart batteries at Sam's. Don't remember seeing the AGM's there, however. Just through the other in there for an example and didn't really shop for them.
Maybe next time for the 6's and especially if I should get full replacement with the 12'a I'm running now, with more than 4.5 years to go yet. We sure give them hell with just one night in a Walmart. Small fridge in the basement, lights, TV, water pump, maybe a short stint with the microwave etc...etc....and then with a pot of coffee in the morning to bottom them out and they'll still start the genset if desired.

tropical36;

Better AGM and better price.

Duracell® AGM Golf Car Battery - Group Size GC2

HTH;
John

thanks for the reply tropical and all makes sense now on both sides I hope. LOL
those AGM are just too rich for my blood.
At my Current dealer cost I can buy 12 220amp 6 volt batterys verses 4 of these AGM you sent the link for

usersmanual wrote:

tropical36 wrote:

usersmanual wrote:

tropical36 wrote:

kidkasha wrote:
1999 Fleetwood Discovery. Is it possible to chancy 4 6 volt batteries the six volt batteries to 2 12 volt batteries? Has anyone done this successfully, and what are there any issues.

No problem and with our coach, it originally came with 4 12v AGM Group 24 batteries. Dealer for previous owner, changed them out to 4 6v wet cells. I put them back to original specs., although, not so sure if having used 4 6v AGM's would have provided more power or not. Depending on the sizes and space available actually and it's just a matter of changing the series/parallel connections to straight parallel. Naturally, two 3/0 jumpers got lost in the process, so had to make those up to complete the install and found out that large crimp on lugs aren't readily available, unless from a electrical distribution house. At least not from Home Depot and the like.
If in doubt with the connections, seek help and/or check the output voltage before connecting up the last lead, which should be your neg. ground.
In my case, I have quite a few neg grounds returning and quite a few plus pos. going out, as well.

I have to ask why? 4 twelves gave you less than 4 6 Volts for total reserve capacity

You'll have to ask Fleetwood American and I just chose to put them back like factory. Now, having said that, the math would suggest otherwise for power capabilities and all this does depend on battery sizes.
One must remember, that parallel connections double the amp capacity and leaving the voltage the same, whereas series connections leave amp capacity the same and in turn double the voltage. Now given that two 6's make one big 12 and four 6's make two big 12's, you're still talking two 12's and not four 12's. So, again, it depends on the sizes and I never bothered to check with what might be available with 6v AGM's as an alternative, but feel that they would have to be quite large to be equal. In essence, the said 6v makeup of two 12's would have to be larger than the four 12v AGM Group 24 batteries, that I have in there now.
Can anyone enlighten me further on this and possibly point me to four 6v AGM deep cycle batteries that would surpass my four 12's?

as I have already suggested(enlightened you) to your FOUR 6 volts will give you more reserve amps than FOUR 12V agm24 batterys there AGMRV24 rate around 80amps each some maybe 90 so 320 to 360
The dual 6 volts to make twelve Volts have 220 combined X2+440 amps
That's the way I understand things ? if you have different more accurate info then please tell me because maybe iam computing the amps the wrong way or?
Hers an excert from the RV battery doctor web site

It really boils down to simple math. As an example; two Group 24 (12-volt) batteries connected in parallel yields approximately 170 combined amps of storage (about 85-amps each). Two Trojan 6-volt batteries wired in series yields about 225 amps at 12-volts. The more batteries you add, obviously the more current you’ll be able to store. Four 6-volt batteries wired into a series-parallel configuration, as another example, will provide about 450 amp-hours of use. Even if you had two, larger, Group 27 (12-volt) batteries in parallel, they only total about 210 amps, still less than two 6-volt golf cart batteries connected in series.

Got it and story short, I probably should have just went with something like these, instead of going for factory originality. I mean they have a large diagram on the access door, that shows the batteries and associated cable hookup for them. The good news is for what I spent, I have a 5yr full replacement warranty, so next time, if there is a next time, I'll probably go with the 6's...
AGM 6volt

tropical36 wrote:

usersmanual wrote:

tropical36 wrote:

kidkasha wrote:
1999 Fleetwood Discovery. Is it possible to chancy 4 6 volt batteries the six volt batteries to 2 12 volt batteries? Has anyone done this successfully, and what are there any issues.

No problem and with our coach, it originally came with 4 12v AGM Group 24 batteries. Dealer for previous owner, changed them out to 4 6v wet cells. I put them back to original specs., although, not so sure if having used 4 6v AGM's would have provided more power or not. Depending on the sizes and space available actually and it's just a matter of changing the series/parallel connections to straight parallel. Naturally, two 3/0 jumpers got lost in the process, so had to make those up to complete the install and found out that large crimp on lugs aren't readily available, unless from a electrical distribution house. At least not from Home Depot and the like.
If in doubt with the connections, seek help and/or check the output voltage before connecting up the last lead, which should be your neg. ground.
In my case, I have quite a few neg grounds returning and quite a few plus pos. going out, as well.

I have to ask why? 4 twelves gave you less than 4 6 Volts for total reserve capacity

You'll have to ask Fleetwood American and I just chose to put them back like factory. Now, having said that, the math would suggest otherwise for power capabilities and all this does depend on battery sizes.
One must remember, that parallel connections double the amp capacity and leaving the voltage the same, whereas series connections leave amp capacity the same and in turn double the voltage. Now given that two 6's make one big 12 and four 6's make two big 12's, you're still talking two 12's and not four 12's. So, again, it depends on the sizes and I never bothered to check with what might be available with 6v AGM's as an alternative, but feel that they would have to be quite large to be equal. In essence, the said 6v makeup of two 12's would have to be larger than the four 12v AGM Group 24 batteries, that I have in there now.
Can anyone enlighten me further on this and possibly point me to four 6v AGM deep cycle batteries that would surpass my four 12's?

as I have already suggested(enlightened you) to your FOUR 6 volts will give you more reserve amps than FOUR 12V agm24 batterys there AGMRV24 rate around 80amps each some maybe 90 so 320 to 360
The dual 6 volts to make twelve Volts have 220 combined X2+440 amps
That's the way I understand things ? if you have different more accurate info then please tell me because maybe iam computing the amps the wrong way or?
Hers an excert from the RV battery doctor web site

It really boils down to simple math. As an example; two Group 24 (12-volt) batteries connected in parallel yields approximately 170 combined amps of storage (about 85-amps each). Two Trojan 6-volt batteries wired in series yields about 225 amps at 12-volts. The more batteries you add, obviously the more current you’ll be able to store. Four 6-volt batteries wired into a series-parallel configuration, as another example, will provide about 450 amp-hours of use. Even if you had two, larger, Group 27 (12-volt) batteries in parallel, they only total about 210 amps, still less than two 6-volt golf cart batteries connected in series.

tropical36 wrote:
Can anyone enlighten me further on this and possibly point me to four 6v AGM deep cycle batteries that would surpass my four 12's?

In the same format (such as AGM) it is just weight and volume.

http://www.bestconverter.com/GPL-6CT-6-Volt-300-Amp-Hour-Deep-Cycle-AGM

http://usbattery.com/products/us-agm-batteries/us-agm-l16/

usersmanual wrote:

tropical36 wrote:

kidkasha wrote:
1999 Fleetwood Discovery. Is it possible to chancy 4 6 volt batteries the six volt batteries to 2 12 volt batteries? Has anyone done this successfully, and what are there any issues.

No problem and with our coach, it originally came with 4 12v AGM Group 24 batteries. Dealer for previous owner, changed them out to 4 6v wet cells. I put them back to original specs., although, not so sure if having used 4 6v AGM's would have provided more power or not. Depending on the sizes and space available actually and it's just a matter of changing the series/parallel connections to straight parallel. Naturally, two 3/0 jumpers got lost in the process, so had to make those up to complete the install and found out that large crimp on lugs aren't readily available, unless from a electrical distribution house. At least not from Home Depot and the like.
If in doubt with the connections, seek help and/or check the output voltage before connecting up the last lead, which should be your neg. ground.
In my case, I have quite a few neg grounds returning and quite a few plus pos. going out, as well.

I have to ask why? 4 twelves gave you less than 4 6 Volts for total reserve capacity

You'll have to ask Fleetwood American and I just chose to put them back like factory. Now, having said that, the math would suggest otherwise for power capabilities and all this does depend on battery sizes.
One must remember, that parallel connections double the amp capacity and leaving the voltage the same, whereas series connections leave amp capacity the same and in turn double the voltage. Now given that two 6's make one big 12 and four 6's make two big 12's, you're still talking two 12's and not four 12's. So, again, it depends on the sizes and I never bothered to check with what might be available with 6v AGM's as an alternative, but feel that they would have to be quite large to be equal. In essence, the said 6v makeup of two 12's would have to be larger than the four 12v AGM Group 24 batteries, that I have in there now.
Can anyone enlighten me further on this and possibly point me to four 6v AGM deep cycle batteries that would surpass my four 12's?

Actually he has FOUR 6 volt batterys that of course we all know will be wired to make two 12 Volt batterys.- most likely the OP does not realize he will lose a lot of reserve capacity by switching to TWO 12v batterys from FOUR 6 volt batterys he currently has though