[RE-wrenches] Lithionics Batteries

[Starlight Solar Power Systems]

Jason,

I just visited the Lithionics website...it’s been a while. It appears they now have a form of external BMS. May be worth a further look. I was remembering an older product with internal energy management which they still sell.

Larry



On Aug 16, 2018, at 3:20 PM, Starlight Solar Power Systems <larry at starlightsolar.com> wrote:

Hi Jason,

We have been selling and installing Li-ion batteries for 5 years with hundreds of customers (we ship batteries every day). I would not recommend using that type of battery for your application. We have sold a few small 24 and 48V systems using LiFeBlue and Relion Battery and had a problem with one system. The EMS on a drop-in Li battery is internal and functions independently. If one battery turns off on a fault, you loose all power on that string. With a parallel path (string) still functioning, the strings are now becoming unbalanced. When the battery is restored, you have 2 different SoC’s for the 2 strings. Not a good scenario and it could lead to cascading trouble. 

I recommend using a battery system with external EMS (example Elite Power Solutions https://www.elitepowersolutions.com/bms/ <https://www.elitepowersolutions.com/bms/>). Everything is field serviceable and if the EMS does turn off, there are simple ways to continue using the battery until it is repaired. Much happier customer. 

You can contact me off the list or call if you would like further advise. 

Thank you,

Larry Crutcher
Starlight Solar Power Systems
(928) 342-9103



On Aug 16, 2018, at 2:51 PM, Jason Szumlanski <jason at floridasolardesigngroup.com <mailto:jason at floridasolardesigngroup.com>> wrote:

Does anyone have experience with this brand from Florida? I have a client with a system where the batteries were neglected by the prior property owner and have failed, so it's time for an expensive replacement. I want to make sure a drop-in replacement is the best option for this client, or should I consider another option? It's about 110aH @ 51V x 8 batteries, total of about 44 kWh rated capacity.

Jason Szumlanski
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