Do you have any brand of battery and the corresponding shelf in mind? On Sat, Nov 21, 2015 at 12:52 PM, Ken Hohhof <[email protected]> wrote:
> If you are comparing similar batteries, the difference for front terminal > is not 4X, maybe 1.5X or less. But you will only find premium deep cycle > AGM batteries in that form factor. So if you are comparing a $300 battery > to a $75 battery there’s more different than just the shape and where the > terminals are. > > It is a lot easier to wire and replace rack mounted batteries if the > terminals are on the front, and you just pull on the front rope handle to > pull them forward and out. Some of them come with these nice jumpers that > connect adjacent batteries in series. And it minimizes the chance of > accidental arc welding, which can happen if you are using a wrench in a > tight space above top terminal batteries in a metal rack. If you have lots > of space above the batteries in the rack, these may not be issues. > > Shipping cost of course is a big factor when buying 500+ pounds of > batteries. Buying local or getting a bunch of them on a pallet is best. > > > *From:* TJ Trout <[email protected]> > *Sent:* Saturday, November 21, 2015 1:27 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Rack mount batteries > > I haven't calc'ed the exact load yet, so thats my estimate. > > Those 12v 100ah front post telecom batteries are super expensive, you can > get the same watt hours in a marine battery for 1/4 the price! Those are > the cleanest though, especially if you can get the special shelf made just > for those batteries. > > I guess maybe i'll do a 4 post rack and throw some marine batteries on the > shelfs > > On Sat, Nov 21, 2015 at 11:18 AM, Josh Luthman < > [email protected]> wrote: > >> That's a hell of a range. What kind of load and runtime are you looking >> for? >> >> Josh Luthman >> Office: 937-552-2340 >> Direct: 937-552-2343 >> 1100 Wayne St >> Suite 1337 >> Troy, OH 45373 >> On Nov 21, 2015 2:02 PM, "TJ Trout" <[email protected]> wrote: >> >>> Could someone recommend a battery / shelf combo to rack mount some >>> batteries for a home brew dc ups ? I need like 400ah-800ah of batteries >>> mounted cleanly on a rack or otherwise that won't break the bank. I know >>> the cellular power plants are really nice with the slim batteries but >>> aren't those really pricey ? >>> >> >
