[RE-wrenches] Lithium ion

[Mark Frye]

The thing I am noticing about these systems is complexity. All the 
different sense wires and circuit boards associated with maintaining 
charge levels on individual cells. I guess the auto groups have been 
hammering reliability, but what about deployment into the off-grid 
space, is it robust enough?

Mark Frye
Berkeley Solar Electric Systems

On 2/28/2014 10:33 AM, Larry Crutcher, Starlight Solar Power Systems wrote:
> Ray,
>
> I had a 100AH battery for about 3 weeks of testing. I worked it hard. I even over discharged it once. It worked perfectly at different charge and discharge rates. The most interesting thing was that the 100Ah battery regularly provided 115AH at 95% DoD.
>
> I would sell the CALBS but, again, the US distribution is only through other dealers. There are several people importing them but they all teated me like the end user or consumer. For off grid use, the Lithium battery industry has a long way to go to make these mainstream. I hope to change that some.
>
> Larry
>
> On Feb 27, 2014, at 7:43 PM, Ray Walters <ray at solarray.com> wrote:
>
> Larry;
>
> You mentioned  you tested CALB batteries; what was your experience with them?
>
> R.Ray Walters
> CTO, Solarray, Inc
> Nabcep Certified PV Installer,
> Licensed Master Electrician
> Solar Design Engineer
> 303 505-8760
>
> On 2/27/2014 4:44 PM, Larry Crutcher, Starlight Solar Power Systems wrote:
>> Jay,
>>
>> I'm an authorized dealer of GBS systems and we stock and sell them here in our retail store. I can build any voltage bank in 12 volt increments. All our systems include EMS computer, cell level balancing, temperature and SoC monitoring with over/under voltage protection. Basically a turn-key setup.
>>
>> We tested CALB for a while and tried to get other lithium brands in but the distribution market in the USA is a horrible mess when it comes to Lithium batteries. I got frustrated after trying to communicate with importers and choose GBS because they had the best and most intelligent response to me. GBS batteries are LiFeMgPO4 or LFMP which is safer, won't catch fire. When comparing life cycles, LFMP is lower cost than any lead acid batteries.
>>
>> If you're interested, I can configure a system for you and get you discount cost for resale. Contact me off the board.
>>
>> Larry
>> 928-342-9103
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