I was using a pair of 10 year old Energizer 6V lantern batteries (hooked up in series for 12 volts) as my ingnition power source for a home-brew, relay-style cluster engine launch controller.
One of the 6 volters finally went flat.
Got this Sealed Lead Acid battery on Amazon for $23. 12v, 9Ahr. Charges up to a healthy 13.7 volts on my Black and Decker trickle charger. The 9 amp-hours of current capacity should be enough current for black powder clusters of 2 to 4 engines, no? I think the rule of thumb is 2 amps of current per igniter for black powder engines. We shall see.
One of the 6 volters finally went flat.
Got this Sealed Lead Acid battery on Amazon for $23. 12v, 9Ahr. Charges up to a healthy 13.7 volts on my Black and Decker trickle charger. The 9 amp-hours of current capacity should be enough current for black powder clusters of 2 to 4 engines, no? I think the rule of thumb is 2 amps of current per igniter for black powder engines. We shall see.