I am looking for a deep cycle battery to use out in the field (woods, beach, camping) and the machine I'm running takes 12volts at 10 amps so I'm looking for 40-60 amp hours. We will be carrying all of this around pretty often so convenience and mobility is important but I will take whatever I can find at this point.

I will also need a charger with it that can charge it in 3-4 hours (10-15a/hr) and I really need it to have 110 and 220 V ac input since we will be using it some in Africa. 50/60hz

I have thought about looking into trolling motors and rv batteries but I am not sure since we will be shipping this a lot and using it in Africa it needs to be able to pass through customs so no lead. Mainly looking for agm or gel type.

I know this is a very specific and tough request but I know there are lots of electrical engineers here so hopefully somebody can point me in the right direction or give me a contact e-mail of someone who can.

7/15/2008 10:48:16 AM

Even gel cells and agm batteries contain lead and are heavy.

AGM is most likely going to be your best bet. None will leak when the case cracks, so do not pose a shipping hazard. Also, they do not outgas like flooded-electrolyte batteries.

You'll have no problem finding an AGM battery that will easily outdo 40-60 Ah; I think most BCI Group 24 AGMs are around 75 to 80. That's a standard car battery size. Be prepared to spend about 275 bucks or so on it.

Finding a charger that will handle both US and overseas AC current is another story. I don't know about that one, as most battery chargers we have here in the states use hardwound transformers and are therefore not adaptable to multiple input voltages like the solid state switching power supplies like we have in our computers.

Oh, and I checked up on a couple of things...you can get a U1 size (riding lawnmower) rated at about 40Ah for between 150 and 175. The next size up is the BCI Group 22NF (what a lot of John Deere riding mowers use) at 55Ah. Can't remember the cost.

[Edited on July 15, 2008 at 1:13 PM. Reason : more info.]

7/15/2008 1:00:27 PM

Is this for a CPAP machine?

7/15/2008 1:30:25 PM

No, but it is for a pressure pump and we will be using in remote areas thats pretty much all I can say. I have found a few but not in the amp range I am looking for.

http://www.interstatebatteries.com/estore/search.asp?

details=1&mscssid=8VKBUDEAEDAW9GXW1S5P5FBJD9BM6QE5&Ntt=12v+agm&N=0&Dx=mode+match

boolean&part_number=SLA1161&Nty=0&D=12v+agm&Nu=Part+Number&Ntx=mode+matchboolean&p

art_desc=12V+++44+Ah+SLA+%2D+Sealed+Lead+Acid&Ns=product+Type%7C0%7C%7CRank%

7C1&Ntk=SearchGroup

Also I have no idea where to look for chargers.

[Edited on July 15, 2008 at 10:41 PM. Reason : mod edit]

7/15/2008 2:40:20 PM

generator make too much noise for you?

7/15/2008 3:24:14 PM

This needs to be able to be ran from the lab, hotel room, ship, plane, or field so a generator wouldn't suffice.

7/15/2008 5:00:39 PM

Something like this?

http://www.lifelinebatteries.com/marineflyer.php?id=3

7/15/2008 5:28:09 PM

Yes but it needs to be 40-60 amps. Those are only up to 25.

7/15/2008 5:34:02 PM

oil exploration or minerals ?

7/15/2008 8:17:28 PM

http://www.batterystuff.com/batteries/mobility-scooter-wheelchair/M34SLDG.html

A Gel-Cell type battery is probably your best bet based on the conditions you're going to be using it in, since they're a lot more durable and temerature tolerant than other large deep-cycle battery types. Just pick a charger you like and you're good to go.

7/15/2008 8:30:43 PM

You said you needed 10-15 amps for 4-6 hours. The battery i linked will provide 15 amps for almost 6 hours...

7/15/2008 9:06:41 PM

No I said I needed a charger that can fill it in 3-4 hours (10-15 amps per hour rate). The charger and the battery are two different things. The charger is what you plug iinto a power source to fill the battery.

^^great info

7/15/2008 10:14:16 PM

^10 amps, with a 40-60ah life

is that not 10amps at 4-6 hours? completely what you said dude.

7/15/2008 10:20:07 PM

Quote :

"The charger is what you plug iinto a power source to fill the battery. "

O RLY??

7/15/2008 10:29:14 PM

TINYURL GODDAMN IT

7/15/2008 10:38:09 PM