Odyssey Group 34R Extreme AGM Battery
- Brand:
- Odyssey
- Part no:
- ODX-AGM34R
Image: continentalbattery.com
Where to buy
View on Amazonpaid link
Specifications
- Chemistry
- AGM
- Voltage
- 12 V
- BCI group
- 34R
- Cold cranking amps
- 850 A
- Warranty
- 48 months
Manuals
- Installation guide (PDF)www.enersys.com
The Odyssey Extreme Group 34R is a 12 volt AGM battery built with pure lead plates. It is rated at 850 cold cranking amps for engine starts and uses the BCI group 34R size. It weighs 49.50 lb. It is backed by a 48 month warranty, and the maker describes its construction as rugged and resistant to vibration.
Our take
The 850 cold cranking amps rating marks this group 34R AGM as a starting battery, and the vibration resistant build counts on a boat pounding in chop. At 49.50 lb, plan on a heavy lift when you fit it into the battery box.
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.