wrote on 3/19/2018 1:49 PM:
On Monday, March 19, 2018 at 4:38:21 PM UTC-4, john firth wrote:
Years ago , I replaced my PIK 20E SLA starter bat with an 8AH
Odyssey; as it did not come with specific charging data, I used a
1A charger when needed .

Thanks to our EAA president, it appears that Odyssey bats should be charged
at a much high rate than SLA. 40% of the AH capacity, in amps
3 A for mine.

John F

"Should" be charged at that rate, or "may" be? I'd say the slower the better, or at least not worse, as long as you have the time available.

Odyssey says slower is definitely not better, and will shorten the life of the
battery.


According to the information that came with my 12 volt, 16 AH Odyssey batteries
(PC680), they should be charged at a minimum of 0.4 x 16 AH = 6.4 amps. In fact,
there is no current limit - they can be charged at 14.7 volts without limiting the
current. I use an 8 amp charger; of course, it doesn't stay at 8 amps
indefinitely, and the charge current begins to drop after while, and the charger
eventually switches to 13.6 volts.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1
- "Transponders in Sailplanes - Dec 2014a" also ADS-B, PCAS, Flarm

http://soaringsafety.org/prevention/...anes-2014A.pdf