Replacing Batteries CD 22

S

SeaSpray

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Joined
Mar 11, 2004
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C Dory Year
2004
C Dory Model
22 Cruiser
Vessel Name
SeaSpray
I purchased my 22 new in 2004 and it came with Optima Blue Top Dual use batteries. I replaced those batteries in 2015 with the same Optima batteries. Now I need to replace again but the Optima is $340 plus now. I'm not sure I want to spend that much.
My batteries are in the lazarettes and the space is tight. Most other batteries seem to be larger than the Optima.
What are other 22 owners using and would recommend?

Thanks,
Steve
 
I use Walmart size 24 dual purpose marine FLA batteries. I have two in the starboard lazerette. They are around $100ea and for me they last 5-6 years. I run on one battery and have the other for reserve.
 
I am no expert, but my used 2002 CD22 came with a pair of NAPA 8240 batteries. The NAPA battery is only around $115 and seems to work for starting the motors and occasionally running a downrigger/pot puller plug.

I replaced the house battery with a 100Ah LiTime lithium charged by a Victron DC-to-DC charger. Prior to the lithium swap, the lead acid battery seemed to power the house OK, but I saw a few low voltage alerts on my chart plotter. I replaced the main house wire with thicker gauge, so I am not sure if the lithium or thicker wire solved that issue. Haven't seen a low voltage alert since. Both batteries are "Group 24" size.

main/kicker motors <-> lead acid -> dc-to-dc charger -> lithium -> house circuit

I have not had issues with the single lead acid battery being dead yet. Worst case I can pull start my kicker motor to hopefully charge up the lead acid battery enough to start the main. Or possibly swap the the DC-to-DC charger wires to charge lithium -> lead acid temporarily.
 
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