- This topic has 4 replies, 5 voices, and was last updated 3 months, 1 week ago by
.
-
I’d go with a group 24 battery with 550 cold cranking amps or 625 marine cranking amps.
Bob
1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."1 user thanked author for this post.
A marine starter battery is best but I have used deep cycle/starter 27 type for years on my 75hp ETEC i now use a size 24 starter (smaller) battery ..
Lithium phosphate are much smaller but just as powerful but there is lots of debate about OB charging circuits being incompatible with LiPo4 … AGM work and don’t leak !
a size 24 marine starter is likely best but read chatgpt opinion.
chat answer…
For a 1995 30 hp Evinrude outboard with electric start, you’ll want a marine starting battery rated for strong cranking power (measured in cold cranking amps — CCA) and a group size that fits your boat’s battery tray.
🔋 Typical Recommendation for a 30 hp Outboard
While the official 1995 Evinrude manual doesn’t list an exact battery size, practical and aftermarket sources show that BCI Group 24 is commonly used and works well for a 30 hp Evinrude with electric start. One boater specifically mentioned using a Group 24 battery with ~550 CCA without issues.
General marine guides also suggest that 30–50 hp outboards typically need batteries with good CCA — often around 500–700+ CCA — with Group 24 being a common fit for space and performance.
⚠️ Important: If you have lots of electronics (fishfinder, lights, etc.) that run off the same battery, consider a larger battery (e.g., Group 27 or Group 31) or a dual-battery setup so starting power isn’t reduced by accessory loads.
Joining AOMCI has priviledges 🙂
1 user thanked author for this post.
Just received Bass Pro Shops flyer in mail. They are selling their POWER SERIES DEEP-CYCLE AGM MARINE BATTERY. for 30% off. If you are a club member, take an additional 10% off.
These batteries are typically made by Northstar or Deka – East Penn Manufacturing according to internet search. I used to deal with Deka in the automotive side of batteries and they were top notch quality. I have heard that Northstar is a great brand also. With the price of batteries tripling in price the last several years, this sounds like a good deal.
1 user thanked author for this post.
I run a 1956 Johnson 30 HP with electric start several times a week at a lake in summer. Only for starting, no other accessories as motor does not recharge the battery. I just use a good quality car battery in a size that also fits one of my old cars. I believe I have used both 24 and 27 size. I recharge about every 3 weeks or when starter cranking speed sounds a bit slower. The charge usually lasts for about 3 weeks. Then I take the battery ashore and recharge. Done that for years, works very well.
1 user thanked author for this post.
- You must be logged in to reply to this topic.