R
Rubicon
- Jan 1, 1970
- 0
Hello,
I read in a previous post about the induction method of charging an
electric toothbrush.
In my wanderings around the net I've seen a series of commercial
marine fishing devices that report the depth and spread of their nets
to the ships. These devices have two stainless contacts on their
exterior for re-charging their batteries in a cradle. It'm wondering
how these re-charging contacts work, especially when they're in salt
water and does anyone have a circuit. My reason is that I'm thinking
of putting together a "Kontiki", a floating battery powered torpedo
shaped fishing device that takes a line out past the breakers. The
prop is either at the rear or under its front for better
self-correction and it's on a timer. As they're battery powered
(sealed lead acid or ni-cad pack) it'd be good to be able to re-charge
it without having to be constantly opening and closing it. As I write
this it occurs to me that an overcharge would possibly cause the
batteries to vent and build up pressure and fumes inside the
watertight casing. I understand that sealed lead acid batteries and
saltwater don't mix (chlorine gas) but it they seem to be in regular
use as a power source.
Any help here is greatly appreciated as I'd really like to know just
how they accomplish this.
Cheers,
Andrew.
I read in a previous post about the induction method of charging an
electric toothbrush.
In my wanderings around the net I've seen a series of commercial
marine fishing devices that report the depth and spread of their nets
to the ships. These devices have two stainless contacts on their
exterior for re-charging their batteries in a cradle. It'm wondering
how these re-charging contacts work, especially when they're in salt
water and does anyone have a circuit. My reason is that I'm thinking
of putting together a "Kontiki", a floating battery powered torpedo
shaped fishing device that takes a line out past the breakers. The
prop is either at the rear or under its front for better
self-correction and it's on a timer. As they're battery powered
(sealed lead acid or ni-cad pack) it'd be good to be able to re-charge
it without having to be constantly opening and closing it. As I write
this it occurs to me that an overcharge would possibly cause the
batteries to vent and build up pressure and fumes inside the
watertight casing. I understand that sealed lead acid batteries and
saltwater don't mix (chlorine gas) but it they seem to be in regular
use as a power source.
Any help here is greatly appreciated as I'd really like to know just
how they accomplish this.
Cheers,
Andrew.