I have 16 20Ah GBS cells and all of them off gas what smells like the electrolyte solution. Put them in an enclosed box for a few days and it is really obvious! I have not detected this with my TS or CALB cells. I'm concerned that either the plastic, vent seals, and/or the terminal seals are leaking. Also, the GBS cells appear to be "softer" than the TS or GBS cells tho I don't have raw data to back that up.
On Tue, Sep 30, 2014 at 12:27 PM, Lee Hart via EV <ev@lists.evdl.org> wrote: > Byron James via EV wrote: >> >> Yikes - the GBS specs call out max continuous discharge <3C. I would be >> careful pulling 5C. A Local GBS distributor destroyed, within a month, >> GBS cells charging and discharging GBS cells at 3C... > > > I tested 16 GMS-LFMP100AH cells. I found two bad ones as delivered > (significantly higher internal resistance and low capacity). The others > performed reasonably well (85-105ah capacity, and about a 2:1 range in > internal resistance). > > One thing I didn't like: These GBS cells used a stack of three thin copper > sheet metal strips to interconnect the cells. Four small 5mm steel screws at > each end screwed into the aluminum terminal to hold them. It was very > difficult to make a good, consistently low resistance connection with this > setup. I have my doubts that these connections will *stay* good over time. > > -- > Results! Why man, I have gotten a lot of results. I know several > thousand things that won't work. -- Thomas A. Edison > -- > Lee Hart's EV projects are at http://www.sunrise-ev.com/LeesEVs.htm > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA > (http://groups.yahoo.com/group/NEDRA) > -- David D. Nelson http://evalbum.com/1328 http://www.levforum.com _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
