From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of Jerry Shafer
Sent: Wednesday, 18 March, 2015 21:57
To: RE-wrenches
Subject: Re: [RE-wrenches] Load testing Lithium battery bank
We use elite batteries with BMS no problems, the BMS sensor does seem to run
Hi Jarmo,
I agree and recognize your urgency in making us aware of the proper use
and charging of Li-ion batteries as well as the dangers of mistreating
them. As an early adopter myself, I am very cautious in my approach even
to the point of refusing to sell to some customers. Lithium battery
If a communication failure with a single cell (not even an actual fault) can
cause total battery shutdown, does that lead to a lot of nuisance tripping?
Bruce Erickson
Mendocino Solar Service
PO Box 1252
Mendocino, CA 95460
707-937-1701
707-937-1741 fax
br...@mendocinosolar.com
Celebrating 20
Not at all. The EMS boards are well built and are protected under a
cover with the terminals. I have not had any failures of the EMS boards
or any failure to communicate with them.
Larry
On 3/18/15 4:52 PM, Bruce Erickson wrote:
If a communication failure with a single cell (not even an
We use elite batteries with BMS no problems, the BMS sensor does seem to
run warm we are now setting up 4, 100 Ah banks with no problems so far.
Jerry
On Mar 18, 2015 1:52 PM, Bruce Erickson br...@mendocinosolar.com wrote:
If a communication failure with a single cell (not even an actual fault)
. 92660
760-403-6810Building a Better Future For The Next Generation
From: Larry la...@starlightsolar.com
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Sent: Wednesday, March 18, 2015 8:57 AM
Subject: Re: [RE-wrenches] Load testing Lithium battery bank
Hi Jarmo,
I agree
Larry,
I've been checking out the [current] viability of Li+ technologies for RE
systems, and I'm encouraged to hear of the success you've apparently had.
What is the typical kWh size of the battery packs you've been putting together?
Are you sourcing the GBS batteries directly from the
Hi Chris,
Thanks for the recommendation. I received a quote from Comrent$1800
to rent a load for 1 week. Ouch! I'll go with the $10 water elements and
a little fabrication time. I have AH counters and controllers to stop
the discharge.
Thank you,
Larry Crutcher
Starlight Solar Power
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From:
Larry la...@starlightsolar.com
To:
RE-wrenches re-wrenches@lists.re-wrenches.org,
Date:
03/17/2015 11:41 AM
Subject:
[RE-wrenches] Load testing Lithium battery bank
Sent by:
RE-wrenches re-wrenches-boun...@lists.re
I was thinking of mounting the water heat elements into an aluminum
plate, laying the plate flat over a 55 gallon drum and filling the water
level up to the plate. Stratified water may make the top pretty hot but
I guess it will work.
Larry
On 3/17/15 1:07 PM, Ray Walters wrote:
Those look
I am repairing and restoring a pair of poorly designed lithium-ion
battery bank that suffered over discharge, damaging many cells. After
cell replacement I need to perform a discharge test with a 10kW load to
verify the remaining capacity. The battery voltage is 105 volts @ 100%
SoC and 89.6
Load banks are for rent, I am in the generator business and it is a common
requirement to provide a load bank upon installation.
http://www.comrent.com/Solutions/load-bank-rentals.html
On Tue, Mar 17, 2015 at 4:35 PM, Ray Walters r...@solarray.com wrote:
Hi James;
So couldn't Larry weld in
: www.Xantrex.com
| Address: 3700 Gilmore Way, Burnaby, BC V5G4M1
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From:
Ray Walters r...@solarray.com
To:
RE-wrenches re-wrenches@lists.re-wrenches.org,
Date:
03/17/2015 01:35 PM
Subject:
Re: [RE-wrenches] Load testing
-wrenches re-wrenches@lists.re-wrenches.org,
Date: 03/17/2015 11:41 AM
Subject:[RE-wrenches] Load testing Lithium battery bank
Sent by:RE-wrenches re-wrenches-boun...@lists.re-wrenches.org
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Hi Larry,
I think you hit on the best load already: water heater elements rated
for 120 v. We have also used dump loads for wind turbines like the air
heating elements from Bergey, but they are only about 1 kW each.
Another possible source are the resistor banks for old golf carts
(before
I would rent a load bank, it will give you the versatility to change loads
as needed.
On Tue, Mar 17, 2015 at 2:41 PM, Larry la...@starlightsolar.com wrote:
I am repairing and restoring a pair of poorly designed lithium-ion battery
bank that suffered over discharge, damaging many cells. After
Hey Ray,
I remember seeing huge banks of light bulbs as loads back in the early
70's.
I need to test the entire bank as one unit as the first cell of 32 to
reach 2.8 volts determines the capacity for the bank. I just saw Home
Depot has a 2kW 120 volt water heater for $10. Guess I need to do
On 3/17/2015 3:07 PM, Ray Walters wrote:
Those look like your solution. Also water can take more heat with less
trouble than air heaters. I've had air heaters start melting things,
etc. You can just install those in the side of a 55 gal barrel with a
bulkhead fitting, or yes, weld the
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