[RE-wrenches] Discover Batteries

Drake drake.chamberlin at redwoodalliance.org
Mon Dec 14 07:31:14 PST 2015


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 <ray at 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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