[RE-wrenches] Hawker versusu MK

[jay peltz]

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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