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Search preserved mailing-list messages and current email and website contributions. Current posts are searchable before weekly archival. Recovery gaps remain possible. Words are matched together; try fewer terms if needed.

Page 1+: 60 results shown for Deep discharge.

Source-balanced relevance: matches from both collections are interleaved, with source dates breaking ties. Restoration time is not the original posting date.

  • Re: Group 41 Battery at Wal-Mart
    Historical mailing list - David Beierl
    Thu, 11 Nov 2010 11:53:49 -0500
    ...Hineline wrote: >Is the shorter-but-still-measurable-in-years story right? It all depends on how deeply you discharge it. True deep-cycle...
  • Re: Group-41 deep cycle gel-cel battery -payback
    Historical mailing list
    Fri, 18 Apr 1997 08:58:38 -0300 (ADT)
    >Here is what I came up with. > >Optima Deep Cycle Battery (not gel, new spiral wound technology) >52 amp hours >700 or 750 cranking...
  • Re: Battery Woes/Choice
    Historical mailing list - Troy
    Sun, 8 Jun 2008 10:55:57 -0800
    The less a battery is drained/discharged the longer it will last. Strictly speaking, flooded batteries are not designed for repeated deep discharges, so...
  • Re: 2nd battery...an alternative??
    Historical mailing list - David Beierl
    Mon, 5 Apr 1999 19:37:42 -0400
    ...To achieve this it gives up vibration resistance and deep-discharge capability, and it is lighter and smaller and costs less than a deep...
  • Deep Cycle Battery #2
    Historical mailing list - Marvin Westenburg
    Tue, 10 Mar 1998 13:10:39 -0600
    ...A discharged battery is much more susceptible to freezing than a fully charged one. That had been a cold winter and the discharged deep...
  • Re: Battery Woes/Choice
    Historical mailing list - Stuart MacMillan
    Tue, 10 Jun 2008 21:29:32 -0700
    ...So, just get a flooded true deep discharge, and put it on a charger every day. The Trojan flooded deep cycle in my EVC...
  • batteries on sale
    Historical mailing list - Davidson
    Thu, 15 Jul 1999 17:24:59 -0700
    ...If they're on the shelf a long time it is possible for them to be deeply discharged. This can reduce the life of...
  • Re: Run time to charge Aux battery
    Historical mailing list - mark drillock
    Sat, 5 Sep 2009 09:55:16 -0700
    ...if you wanted to never discharge your > deep-cycle batteries too deeply (say never less than 80% discharged so > they last longer), then a...
  • Re: Fw: Re: Battery Isolators vs. Relays
    Historical mailing list - David Beierl
    Thu, 13 Dec 2001 14:30:41 -0500
    ...A battery like the Optima starting battery that is rated for fifty deep discharges might be a good compromise -- typical starting batteries probably can...
  • Re: Run time to charge Aux battery
    Historical mailing list - Karl
    Sat, 5 Sep 2009 14:13:01 -0400
    ...if you wanted to never discharge your > deep-cycle batteries too deeply (say never less than 80% discharged so > they last longer), then a...
  • Re: Shorten Aux Battery Recharge Time
    Historical mailing list - Dennis Haynes
    Fri, 25 Jan 2002 18:34:13 -0500
    ...Also, a battery should never be discharged more than 80% (includes deep cycle types). The Optima being an absorbed glass mat battery (AGM), is...
  • Re: Battery Woes/Choice
    Historical mailing list - Dennis Haynes
    Tue, 10 Jun 2008 22:03:20 -0400
    ...So according to the advertisements AGM batteries can withstand deep discharges. Good for 150 to 300 cycles. Wow! A good flooded forklift battery is...
  • Re: Battery Woes/Choice
    Historical mailing list - Taeke
    Thu, 12 Jun 2008 08:22:14 -0400
    ...So according to the advertisements AGM batteries can withstand deep discharges. Good for 150 to 300 cycles. Wow! A good flooded forklift battery is...
  • 2nd batt. charging and relays. The whole truth
    Historical mailing list - Beckett Cantrell
    Thu, 15 Jun 2000 16:33:27 EDT
    ...is deeply discharged, and you're running 2ga. wire and a 75amp relay, the batt. will most likely draw 75 amps(or whatever your...
  • Another @#$% deep cycle battery question!!
    Historical mailing list - Jason M. Yasment
    Mon, 19 Jul 1999 01:42:17 -0000
    ...1) Can you charge and discharge a deep cycle battery at the same time? Ex. Have a solar panel charging the battery while the...
  • Re: auxilery battery
    Historical mailing list - david griffiths
    Tue, 21 Dec 1999 20:56:31 -0800
    ...Sounds like a deep discharge battery was recommended. Regular automotive batteries deliver large amounts of energy over a short time, DD batteries deliver the...
  • Why AGM batts don't last as long as they should
    Historical mailing list - Stuart MacMillan
    Thu, 12 Jun 2008 11:37:31 -0700
    ...So according to the advertisements AGM batteries can withstand deep discharges. Good for 150 to 300 cycles. Wow! A good flooded forklift battery is...
  • Re: Deep Cycle Batteries
    Historical mailing list - John
    Sun, 29 Jul 2007 21:24:32 -0600
    ...lower limit for any > cooling. > You discharged your battery 100%. Not recommended, and only a solid, true deep cycle battery is going to allow...
  • Re: Alternators and batteries
    Historical mailing list - Dennis Haynes
    Mon, 25 Sep 2006 23:40:55 -0400
    ...Note that many of the comparisons are to Standard starting, lighting, ignition (SLI) batteries, not true deep cycle. The discharge ratings are for 10...
  • Re: Camping Battery
    Historical mailing list - olmcons
    Sun, 20 Jul 1997 19:16:14 -0400
    ...The inrush into a discharged deep discharge (try saying that three times fast) battery is not very high. I use an isolation switch to...
  • re: deep cycle battery
    Historical mailing list - Maher, Steve (SD-MS)
    Mon, 06 May 1996 09:00:00 -0700 (PDT)
    >Stinger dry cell Power Master (Model SPB-1000) > True Deep-cycle battery > Withstands more than 400 cycles of 100% discharge >It looks very good...
  • Re: VoltMinder-Is it a good thing?
    Historical mailing list - Tom Hargrave
    Wed, 14 Apr 2010 23:25:46 -0500
    ...But deep cycle batteries are built differently. Deep cycle batteries are made of fewer very heavy lead plates that can take deep discharge without...
  • Re: 2nd battery...an alternative??
    Historical mailing list - George Chapman
    Mon, 5 Apr 1999 15:52:00 -0700
    ...The "deeper" a deep-cycle battery is discharged (below 50% discharge, in general) in each cycle, the shorter the overall battery life. In determining...
  • Re: Fw: Deep Cycle Batts.. A Journey
    Historical mailing list - pensioner
    Thu, 12 Dec 2002 08:12:06 -0800
    Oddly enough there is data regarding internal self discharge. For an empirical test, charge an old battery that has had distilled water added to...
  • Re: Low-voltage alarm
    Historical mailing list - Michael Elliott
    Mon, 18 Jun 2007 21:33:32 -0700
    ...It comes down to how deeply you are willing to discharge the battery. I try to keep our house battery at no less than...
  • Re: Run time to charge Aux battery
    Historical mailing list - Dave Mcneely
    Sat, 5 Sep 2009 14:54:52 -0400
    ...if you wanted to never discharge >> your >> deep-cycle batteries too deeply (say never less than 80% discharged >> so >> they last longer), then a...
  • Re: Run time to charge Aux battery
    Historical mailing list - mark drillock
    Sat, 5 Sep 2009 11:38:00 -0700
    ...if you wanted to never discharge your >> deep-cycle batteries too deeply (say never less than 80% discharged so >> they last longer), then a...
  • Re: Low-voltage alarm
    Historical mailing list - TC
    Mon, 18 Jun 2007 20:44:51 -0700
    ...is ~ full charge, & fully discharged is about 11v so 11.7v is really low discharge pt even on deep cycle batteries if you want...
  • Re: Deep Cycle Batts.. A Journey
    Historical mailing list - David Brodbeck
    Tue, 10 Dec 2002 11:05:24 -0500
    ...Plate damage is caused by the battery sitting discharged for long periods of time. No matter what kind of floor the battery is on...
  • Re: Understanding Amp Hours
    Historical mailing list - jon
    Thu, 22 Jun 2006 09:25:51 -0700
    ...you don't want to discharge a battery* more than 20 to 50 percent. "Deep cycle" batteries are exactly that: they are designed for...
  • Re: Alternators and batteries-Optima
    Historical mailing list - Dennis Haynes
    Mon, 25 Sep 2006 17:55:55 +0000
    ...These batteries do not withstand multiple complete discharges well and they require special charging curves for recovery after a deep discharge. Not practical for...
  • deep cycle batteries?
    Historical mailing list - David E Most
    Sun, 21 Jul 1996 02:21:18 -0400
    ...A couple of people on the list have suggested that I put a marine/deep cycle battery in its place for powering such devices...
  • Re: Battery Isolators vs. Relays
    Historical mailing list - Tim Hannink
    Fri, 14 Dec 2001 02:07:45 +0800
    ...Every time the battery is deep discharged after that, you loose about 25% of its capacity. My 1 year old battery can run the...
  • Re: Auxiliary Battery Installation II: Hawker Odyssey battery; need for higher amp relay
    Historical mailing list - Chris Earl
    Thu, 21 Aug 2003 02:33:05 -0400
    ...This has worked successfully, even with a deeply discharged battery. One note: The Chargetek charger only works if the battery is holding 9.5...
  • For Canucks Only -what kind of battery?
    Historical mailing list - Nathaniel Poole
    Sat, 10 Feb 2007 13:54:25 -0800
    is used for the auxillary battery in the back of an '80 vanagon? None of the local vendors show anything in deep discharge that...
  • Re: Deep Cycle batteries
    Historical mailing list - pensioner
    Sat, 17 Nov 2001 08:21:50 -0800
    ...The starting battery will accept a faster charge than the deep cycle because of the availability of plate material surface to the electrolyte. (that...
  • Re: Optima Battery
    Historical mailing list - Ian Allan
    Sat, 5 Jan 2008 21:26:44 -0500
    ...The thinner plates of a starting > battery won't last for as many deep discharge/charge cycles as can > the thicker plates of a...
  • Re: Deep Cycle Batts.. A Journey
    Historical mailing list - Todd Last
    Wed, 11 Dec 2002 07:37:44 -0800
    ...In this case it was possible for the battery to discharge when placed on wet concrete. However, it is no longer applicable to batteries...
  • Re: 2nd batt. charging and relays. The whole truth
    Historical mailing list - harald_nancy
    Thu, 15 Jun 2000 16:12:19 -0700
    ...is deeply discharged, and you're running 2ga. wire and a 75amp relay, > the batt. will most likely draw 75 amps(or whatever your...
  • Re: deep cycle batteries?
    Historical mailing list
    Thu, 25 Jul 1996 19:32:48 -0400
    ...The Deep Cycle battery will work fine except it will not fit properly under the seat. With some customizing, it can be done although...
  • Battery Myths-including deep cycles
    Historical mailing list - Dennis Haynes
    Thu, 22 Feb 2007 14:32:14 +0000
    ...Connecting an Auxiliary battery to the main battery for charging-If the house battery is discharged, current will not suddenly rush from the main...
  • Re: Westy auxiliary battery (why not keep it going)
    Historical mailing list - Alistair Bell
    Thu, 9 Feb 1995 13:32:37 -0800 (PST)
    ...Lead sulfate is part of the charge storage mechanism, but some of it "drops out of" the reversible reaction, especially if you deep discharge...
  • RE: Battery for Vanagon
    Historical mailing list
    Wed, 13 Mar 96 09:07:58 EST
    ...To summarize, NiCds are not deep discharge type batteries, but on the other hand, they should be discharged substantially before recharging rather than "topped...
  • Re: 2nd batt. charging and relays. The whole truth
    Historical mailing list - Brent Christensen
    Thu, 15 Jun 2000 22:52:16 -0700
    ...is deeply discharged, and you're running 2ga. wire and a 75amp relay, > the batt. will most likely draw 75 amps(or whatever your...
  • (Fwd) Re: '81 Westy Deep-cycle/group 41 combo Q's
    Historical mailing list - Richard Lumb
    Fri, 14 Mar 1997 16:12:33 +0200
    ...probably recover when the deep cycle battery charges up somewhat - but this will be a recurring problem whenever you discharge (i.e. use) the...
  • UNIVERSAL UB12220 vendor alert
    Historical mailing list - Troy
    Mon, 3 Aug 2009 12:08:53 -0800
    ...The longer a battery stays in a discharged state the more likely it is to fail, so for a company that sells batteries, it...
  • RE: deep cycle battery
    Historical mailing list - Mark McCulley
    Mon, 6 May 1996 09:24:12 -0700
    ...deep cycle battery >Stinger dry cell Power Master (Model SPB-1000) > True Deep-cycle battery > Withstands more than 400 cycles of 100% discharge >It...
  • Re: Another @#$% deep cycle battery question!!
    Historical mailing list - S Sittservl
    Mon, 19 Jul 1999 20:03:08 EDT
    ...Yasment) > > OK here it goes..... > > 1) Can you charge and discharge a deep cycle battery at the same time? > Ex. Have a solar panel...
  • NiMH batteries for camping? Was: Re: Batteries don't die, they get murdered
    Historical mailing list - Martin Jagersand
    Wed, 14 Feb 2007 02:57:12 -0700
    ...Advantages are better power to weight ratio and (I believe) up to 500 deep (near 100%) discharge cycles. I'm wondering if NiMH would...
  • Re: hella 2nd battery kit
    Historical mailing list - Bill Davidson
    Wed, 14 Jun 2000 16:18:00 -0700
    ...and continual draws of over 25 amps when charging a deeply discharged Optima deep cycle battery. If you don't get complaints with the...
  • Re: Optima Battery
    Historical mailing list - Michael Elliott
    Sat, 5 Jan 2008 17:13:21 -0800
    ...The thinner plates of a starting battery won't last for as many deep discharge/charge cycles as can the thicker plates of a...
  • RV battery for vanagon
    Historical mailing list - Brian M. Miller
    Tue, 16 Apr 96 11:14:55 PDT
    ...Also I notice that the battery is NOT a deep discharge type. So I think to myself, "This battery is probably damaged (because the...
  • Re: Wal-Mart Griup 41 Battery
    Historical mailing list - Al Knoll
    Sun, 1 Mar 2009 13:08:41 -0800
    ...On the other hand, deep cycle and 'marine starting batteries have less porous plates, not optimal for starting but much better for deep discharge...
  • Re: Low-voltage alarm
    Historical mailing list - Dennis Haynes
    Tue, 19 Jun 2007 12:00:48 -0400
    ...is ~ full charge, & fully discharged is about 11v >>so 11.7v is really low discharge pt even on deep cycle batteries if you >>want...
  • Re: Deep cycle battery - 85 Home Made Westfalia
    Historical mailing list - pensioner
    Fri, 26 Apr 2002 14:51:37 -0700
    ...A discharged battery is still around 10.2 VDC so if you had one discharged and one partially charged and one fully charged and...
  • Re: Run time to charge Aux battery
    Historical mailing list - Rocket J Squirrel
    Sat, 5 Sep 2009 12:26:13 -0700
    ...if you wanted to never discharge your >> deep-cycle batteries too deeply (say never less than 80% discharged so >> they last longer), then a...
  • Re: Low-voltage alarm
    Historical mailing list - David Etter
    Tue, 19 Jun 2007 11:58:09 -0300
    ...Among the "Deep Discharge" Battery manufacturers, it's a very competitive world out there and they are stretching the limits (and credibility too) all...
  • Re: Battery Charger Sizing (Amperage) Woe and Warning (?)
    Historical mailing list - Steve Williams
    Sat, 3 Aug 2013 12:39:06 -0700
    ...A small charger may not be able to provide enough current to bring a deeply-discharged battery up to the optimum voltage. A discharged...
  • Re: Run time to charge Aux battery
    Historical mailing list - Rocket J Squirrel
    Sat, 5 Sep 2009 12:27:13 -0700
    ...if you wanted to never discharge >>> your >>> deep-cycle batteries too deeply (say never less than 80% discharged >>> so >>> they last longer), then a...
  • Radiator fan
    Historical mailing list - Robert Clemmer
    Sun, 6 Sep 2020 09:41:20 -0400
    ...I resorted to disconnecting the battery to shut it off and save the battery from deep discharge. Anyone want to weigh in on the...