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I have a Lancair 360 with a 200hp Lycoming and the only
battery I have ever used is a Panasonic SLA battery 28ah. The first one
was bought before the plane ever flew nd did all the testing of the systems
including lots of cycles of the hydraulic pump. On top of all the testing
it lasted for three years. But here is the kicker the cost was Can$78.00
which is somewhere around US$66. It never failed to crank the engine but
latterly it only just made it over the first compression, then it was fine. I
had to put a trickle charger on it if I left it in the hangar for a couple of
weeks without flying.
It can be used in any position, even on its side and needs no
battery box. Mine is on the rear of the firewall above the pilot's rudder
pedals.
It is sent through the post as it is considered non hazardous
due to being leakproof. You can buy it from Digikey. Part #P049-ND for the
28ah and P259-ND for the 33ah (Can$80/US$68) I would use the bigger
battery except for the fact that it is a major mod to change the shelf where it
sits.
In my opinion I can afford to change it every three years at
that price.
Why buy anything else?
Ian Crowe
C-FKRO 250 hours
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