thanks Stuart.

I imagine i didn't kill it but after charging it to 100% as shown on
the chargers' meter, with fridge running, I disconnected the charger
from shore power, then reconnected it. Charger meter dropped to 75%
charge. This led me to think that maybe my battery wasn't really
charging to the 100% as indicated on charger. But maybe that's just a
really sensitive meter I'm viewing. Like a very minor voltage drop in
battery makes meter drop to 75% ?

Anyhow.....

Neil.

On Tue, Jul 23, 2013 at 12:09 PM, Stuart MacMillan <stuartmacm@gmail.com> wrote:

> I'm no expert, but deep cycle batteries have more lead in them in the first
> place to withstand deep discharging periodically, that's the whole point of
> a deep cycle battery.  If it takes a charge normally, it's fine.  I would
> not try this on anything other than a battery that won't take a charge, and
> even then it's probably not worth it.
>
> Stuart
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> neil n
> Sent: Tuesday, July 23, 2013 11:13 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Flooded Cell Deep Cycle Battery De-sulphation. Risky?

> My near new 100 AH flooded deep cycle battery (not AGM) ..... was recently discharged it to 11.15
> Volts.

> The charger has a "16V Boost" de-sulphation mode. ..... to melt any
> soft sulphate......

> Have others used this method? Is this a bad idea?

--
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:

http://tinyurl.com/d7gd5ej