Another interesting thing about the Discover L-16 batteries is that
they can be operated at incredibly high temperatures. High
temperatures drastically reduce the life of the batteries, however.
At 12:39 PM 12/13/2015, you wrote:
Hi Jay;
Actually the Outback RE High Capacity batteries are rated at 1800
cycles at 50% DOD, not 80%.
The Discover is rated at an "amazing" 2950 cycles at 50% DOD, but
the same brochure has a chart of cycles vs temperature and at 25 C
they are a bit under 2000 cycles at 50%, which is closer to the
Outback. I suspect that they also performed their testing at very
slow discharge rates, as they don't have to conform to BCI
procedures in Canada.
I'm tiring of manus that are trying to cheat on the numbers: amp
hour ratings at high temperature and slow discharge rate, cycle
life at cold temperatures and short DOD. I really see a need for
independent testing of batteries by a third party on a level playing field.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 12/12/2015 10:59 AM, jay wrote:
HI Ray,
Not really that unique.
Most industrial VRLA are pretty close.
Just a quick check of the Outback site, has their RE version at
1500 cycles at 80%DOD
and OPzV at 1800 cycles.
Unigy, and Absolite 2P are going to right there as well.
jay
peltz power
On Dec 12, 2015, at 9:41 AM, Ray Walters <r...@solarray.com> wrote:
Anyone heard of or used Discover Batteries?
http://discover-energy.com/products/advanced-tubular-batteries/
They have a sealed lead acid battery that they are claiming 1900
cycles to 80% DOD.
Sounds amazing, but....
They are head quartered in Canada, and I'm having a hard time
getting info on them, but a Canadian customer is going to use them
and knows other folks that are having success with them.
--
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
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