Cents per watt hour is how I compare them. Flooded cells start in the 15 cent range. AGMs are up to the 30 cent range. Super hardened hawker types are more 40-50 cents.
From: TJ Trout Sent: Saturday, November 21, 2015 12:27 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 ?
