Odyssey Extreme G27 AGM Battery, 930A CCA, 92Ah
- Brand:
- Odyssey
- Part no:
- ODX-AGM27M
Where to buy
Specifications
- Chemistry
- AGM
- Voltage
- 12 V
- Dimensions (L x W x H)
- 12.5"L x 6.8"W x 8.8"H
- BCI group
- 27
- Capacity
- 92Ah (20 hr rate)
- Cold cranking amps
- 930 A
- Reserve capacity
- 195 min
- Mounting orientation
- Any position except inverted
- Warranty
- Up to 4-year limited full replacement warranty
Manuals
- Instructions (PDF)images.boatid.com
The Odyssey Extreme G27 (ODX-AGM27M) is a 12V Group 27 AGM battery rated at 930A cold cranking and 92Ah, with 195 minutes of reserve capacity. Odyssey presents it as a battery that both cranks engines and handles deep cycle duty, and quotes 400 charge-discharge cycles to 80% depth of discharge. The case measures 12.5"L x 6.8"W x 8.8"H. Its design lets it be mounted on any side or position except inverted. A limited full replacement warranty of up to 4 years covers it.
Our take
With 195 minutes of reserve capacity and 930A of cold cranking in one Group 27 AGM case, this battery is built to start an engine and also carry loads between charges. It can be mounted on any side but inverted, which gives some freedom in where it goes.
From our buying guide
A starting battery delivers a short burst of strong power, a deep-cycle battery a low, steady level for longer, and a dual-purpose battery a balance of the two. Buy for the job it will do.
Check before you buy:
- You've measured the tray against the maker's real dimensions, since a BCI group gives maximum sizes and some batteries sold as a drop-in run longer.
- You're comparing the same rating. Cold cranking amps are tested at 0°F and cranking amps at 32°F, so the second number is higher.
- If it's lithium, the maker says whether it may start an engine, and NMMA advises contacting your boat's manufacturer or a certified technician before replacing lead-acid.