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I should mention that my Odyssey 680s had 300 and 400 hours on them when they failed, which was probably like 150 and 200 starts. Is that about how long they last? Should they last longer? Did I get ...

This is a three year old response, but... I have so much respect for the help Bob's resources have provided, I feel compelled to respond.

I have a Z-14 (rear batteries) install in an Lancair ES. I ...

I am reconfiguring some wiring to make it more user friendly next time I have to dig into it, and a question arises about the trade off between ease of use and connection quality. The main question i ...

Resurrecting this old thread.

Suppose the hall effect sensor is on the fat wire from battery 2 in Z-14 with a 70 amp alternator 1 and a 20 amp alternator 2. Here are my questions (recognizing th ...

The problem is my Map Light rocker (already in the panel) is a two position DPDT switch. I should have mentioned that. I think my diagram works given that fact.

The attachment shows what I was thinking.

1. Both switches off -- no lights on.
2. Map Light switch on, POT off -- Map Light on full bright.
3. Map Light swtich off, POT on -- POT controls bright ...

Is there anything wrong with (i) wiring a Map Light to a switch with that name on the panel so that the light it can simply be turned on and off, AND (ii) wiring the same light to a dimmer circuit tha ...

Here's what I'm doing. I'm buying two Power-sonics. They're so cheap that if they don't work well, it's water under the bridge. I can use them in my motorcycle!

I'll report back on the results. ...

Charlie, what engine are you cranking?

Best,
Dan

A bit more on this -- with the redundancy I have in the Z14 system, I am not looking for a high $$ battery. I am happy to change one out every year IF the batteries do a good job cranking the engine. ...

Ordering two batteries for my ship (Z14, rear bats). Some years ago, the good doctor recommended three:

A few exemplar brands and part numbers are:
Panasonic LC-RD1217
Odyssey PC680
Power Sonic ...

Thank you Bob, Joe, all, for all this advice. Happy and safe flying, Dan

Nobody above said that conductive paint will work as an antenna ground plane except the OP's misinformed tech. Yes, conductive paint does have some conductive properties. It also has high resistance, ...

I think you’re saying that around an antenna will work to some degree even if it is not electrically connected to the antenna. If that is true, conductive paint will work to some degree even if sea ...

Here is a dumb question about ground planes. Does the ground plane serve to direct the signal to the antenna irrespective of whether the antenna is "connected" to the ground plane, or must ...

[/quote]
Correct. Both starter and alternator seek
ground through their attachments to the
engine. That fat/flexible jumper from
crankcase to firewall ground stud is
really importa ...