Fuses in general

What's wrong with a short piece of bungee cord?

Batteries are heavy, hard objects that I would prefer not hit me in
the back of my head in heavy turbulence or worse, a crash landing. I
would never trust a bungee cord to restrain a few pounds of lead! I
use a 1" nylon strap (heavy duty) with a METAL BUCKLE (I have broken
too many plastic buckles to trust them in a critical application)
attached to some solid structure of the glider. Buckle is positioned
to keep it far away from the terminals (which are insulated too)

In my glider, the (2) 12 Ah batteries are sitting in a aluminum angle
(1.5") tray bolted to the structure. This way the tray absorbs most
of the g forces and the straps keep the batteries in the tray. By the
time the straps break or the tray tears loose, I probably no longer
have to worry about the batteries hitting my head.

I also use PowerPole connectors with fuses on each battery.
Connectors are double sided taped to the battery as a strain relief.

I also carry a auto cigarette adapter with a powerpole connector and
my cell charger so I can charge my cell if I get stuck somewhere.

On Dec 9, 3:15*pm, Todd wrote:
I use a 1" nylon strap (heavy duty) with a METAL
BUCKLE...

I've used a very similar setup with good results. The battery box I
built for my HP-11 was one of my very first sheetmetal projects, and I
tested it and the retention strap to about plus or minus 12g. That
means I could stand my 140 lb weight on it without yielding, and I
could safely apply the same force upwards to the strap.

However, one thing I didn't know at the time is that nylon is rather
sensitive to acids, and loses strength quickly when so contaminated.
Given that the S in SLA is for "sealed," under most circumstances
there's no chance of spillage. But the A does stand for "acid," so it
pays to keep an eye on the battery to make sure it doesn't leak, and
on the strap to make sure it isn't becoming brittle or discolored.

Thanks, Bob K.