Hi all. My near new 100 AH flooded deep cycle battery (not AGM) has seen little use, is on a charger when not used, but was recently discharged it to 11.15 Volts. Would this discharge create any appreciable amount of soft sulphate on the plates? The charger does not show an error when connected to the battery. (see below) The charger has a "16V Boost" de-sulphation mode. Warnings in the manual (quoted in part below) make me wonder if using the "Boost" mode to melt any soft sulphate, carries a lot of inherent risk. (i.e. electrolyte boil over or worse) From reading elsewhere, AFAIK, this mode likely uses a pulsed voltage though the manual calls it a "highly specialized" charging mode. Have others used this method? Is this a bad idea? Thanks Neil. From the charger owners manual:
"CAUTION. USE THIS MODE WITH CARE. THIS MODE USES A HIGH VOLTAGE AND MAY CAUSE SOME WATER LOSS IN WET (FLOODED) CELL BATTERIES." "The 16V BOOST mode is used to recover battery capacity from a stratified (sulfated) battery by applying a specialized high 16.5V (17V Max) voltage to soften and melt down sulfate from the battery plates so that the material becomes usable again." " 2.) Attach the battery clamps or eyelet terminal connectors to the battery,....... 3.) Connect the battery charger’s AC power plug into a suitable electrical outlet. DO NOT FACE THE BATTERY WHEN MAKING THIS CONNECTION." "TROUBLESHOOTING ORANGE ERROR LED ILLUMINATES....... • SULFATED, DAMAGED, OR POOR BATTERY This ERROR condition can be the result of a sulfated, damaged, or poor battery. To properly diagnose a sulfated, damaged, or poor battery, take the battery to a local battery store for an evaluation. " -- Neil n Blog: tubaneil.blogspot.ca '88 Westy http://tinyurl.com/c8rlw6p '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/ Vanagon VAG Gas inline-VR Engine Swap Group: |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.