We recently purchased a battery powered forklift, with 24 ea. 2V batteries. Approximate dimensions: W=5", L=6-3/16", H=~21" (hard to tell). Enersys is stamped on the top.
The battery supplier claims the batteries are "24-85-13" but this refers to a 24V battery as far as I can tell. He also claims that the batteries are rated at 510-550 A-hr. I am assuming that the lower number is for 6 hours discharge. I would like to know more about the batteries. Also, how to discharge / charge them. Should they be run down to 20% SOC and then fully charged? What if we don't use the forklift for a week at a time? Based on my experience of using AGM batteries, it would seem that the Bulk charging rate should be some percentage (e.g. 20%) of the 6-hour ampacity, then there is a constant voltage absorption charge (e.g. Vabs=2.385 V), and a switch to Float when the charging current drops to some low percentage (e.g. 0.5% of capacity), and the Float voltage being 2.125 V. Again everything at 25 deg C. It seems like the forklift guys like to refer everything to a 6 hour capacity, which may be related to the maximum typical daily usage. What is the relationship between Voc and SOC after resting the battery for 6 hours at 25 deg C? Thanks in advance for your help, guys. - Peter Parrish Alternative Energy Department College of the Canyons peter.parr...@canyons.edu O: (661) 362-3888 C: (323) 839-6108 _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
