We use a high lift jack to lift the case up onto a carrier we've made.
Roll them right into the room. We then use the high lift to push them
exactly into place, with a wood brace against the wall. I'm still a HUP
fan fro the cycle life (2100 cycle to 80% DOD) but if the 1500 cycle
batteries are 30% cheaper, then they're the better deal ( not counting
the cost of moving batteries sooner)
I will third the Rolls problems; we had a reversed cell that we were
shipped new. A guy with a multimeter at the loading dock could prevent
these dead ducks from flying. The customer was out of power for 6 weeks
waiting for the replacement, while we paid $200 shipping. For the
money vs. cycle life vs. warranty, we just weren't loving the Rolls.
They are easier to move, which is a good thing, but HUP pays shipping
and for your time for the first year.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 8/13/2013 3:29 PM, jay peltz wrote:
Hi Dick,
Best trick I ever learned for these metal cased is to build a
wheeled base with steel wheels.
Yea, still have to get them onto the base, but then its easy.
Also when I use metal cased batteries I like to have them with removable
series interconnects
not the welded type.
Interesting to hear the comments on the Rolls shipping. I've seen that problem
myself, but
didn't realize that it was so common.
jay
peltz power
On Aug 13, 2013, at 9:31 AM, Richard L Ratico wrote:
I've got two Hawker installs out here, a 48 Volt and a 24 Volt system. Both are
going on 6 years or so. Clients are happy, I'm happy. It does resemble work to
move and place them. We typically use "Egyptian" techniques when heavy equipment
isn't available or appropriate. Inclined plane, big pry bars, rollers, come
along, block & tackle. It's kind of fun to try to outsmart the mass. It's
interesting to experience gravity's effect on lead, atomic weight 207.2. Glad
it's not Uranium at 238. Thankfully, we've not had to replace a cell. That
always sucks, regardless.
If I remember correctly, the steel cans had welded seams. The cans make the use
of insulated tools even more important. Should you ground the cans???
Speaking of replacing cells. I looked at a 5 year old bank of 8 Rolls L16s this
weekend. Two of the batteries had a dead cell. This in a bank that had a single
battery replaced at 6 months or less because of a bad cell.
I've also got a 7 year old bank of 12 Surrette / Rolls 2 Volt units installed.
The only problem so far was on day one when they arrived. They were shipped on a
single, narrow, beat up pallet. Some had obviously tipped over in transit and
had lost a considerable amount of electrolyte. Northern Arizona Wind & Sun
user's forum has posts reporting similar experiences.
I dread receiving expensive pallets of batteries and modules from shippers. High
percentage of damage. Steel cans instead of plastic wrap is worth thinking
about.
Hope this doesn't just muddy the water.
Dick Ratico
Solarwind Electric
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