My pack of 20 Golfcart batteries is now almost 4 years old and it has brought my truck over 14k miles so far, but tonight when I inspected a couple of the batteries I noticed something strange - while some cells had minimal water loss (level about 1/2" under the top of the cell) there were several other cells that barely had their plates covered, the level had gone down more than a full inch in those! How can this difference be explained? It seems that low level occurred more in the center cell than in one of the two side cells, but that may be a coincidence, unless it is heat related. There is no significant loss of electrolyte from the cells, the top of the battery has some baking soda, so I would have noticed if there was a large amount of electrolyte escaping. All caps are tight - I use speedcaps, which means 3 caps open/close at the same time. I use an auto-shutoff refill bottle, so I am pretty sure that the cells were refilled to the same level, now almost half a year ago when I watered them all. Is this normal for an aging pack? This is my first flooded pack...
Cor van de Water Chief Scientist Proxim Wireless Corporation http://www.proxim.com Email: [email protected] Private: http://www.cvandewater.info Skype: cor_van_de_water XoIP: +31877841130 Tel: +1 408 383 7626 Tel: +91 (040)23117400 x203 _______________________________________________ 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)
