It was easier to balance these type of industrial batteries with the expose lead connection bars. Back in the 50's we had chargers at the battery shop which had multiple charger leads that we can connect to each 2 volt jar. Jars are separate units that are place in a cell or opening in a group of jars call a battery.
Today you can actually charge each cell in a battery except for a seal battery. How do you do it? The method is using a cadmium coated probe that is inserted into the electrolyte, but does not touch the plates. A cell cap is use to hold it in place. See Cadmium Testing in your search engine for this method. Roland ----- Original Message ----- From: "Lee Hart" <leeah...@earthlink.net> To: "Electric Vehicle Discussion List" <ev@lists.evdl.org> Sent: Saturday, March 16, 2013 12:47 PM Subject: Re: [EVDL] ? 12V PbSO4 batteries in 1940 ? : Rare 1940s Brequet electric car discovered ... > > Were there 12V batteries in the 1940's? > > Before WW2, manufacturers generally built individual 2v cells. They were > packaged into batteries (of whatever voltage was desired) by their > customers. The manufacturers were just starting to put groups of cells > together, for their largest customers. 6v was obviously the most common, > as it was requested by the automakers. But there were 12v and 24v > batteries as well, for trucks, buses, and industrial EVs. > > You can still see examples of these large single cells, as they are > still used in industrial vehicles like fork lifts. The "battery" is a > big steel box, and the individual cells slide into it and are wired in > series on top for whatever voltage is needed. > > -- > Lee A. Hart | Ring the bells that still can ring > 814 8th Ave N | Forget the perfect offering > Sartell MN 56377 | There is a crack in everything > leeahart earthlink.net | That's how the light gets in -- Leonard Cohen > _______________________________________________ > 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) > > _______________________________________________ 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)
