The Odyssey ODX-AGM8DK is a battery pack with a nominal voltage of 12 V, 228 Ah at the 20-hour rate, a reserve capacity of 500 minutes and a weight of 187.00 lbs.
Last updated: 8 October 2026
Battery and charging
- Voltage
- 12 V
- Rated charge cycles
- over 900 cycles at 50% depth of discharge
- Internal resistance
- 1.5 mΩ
- Cranking current
- 3125 A, 5-second pulse hot cranking amps (PHCA)
- Capacity, at the 20-hour rate
- 228 Ah at the 20-hour rate
- Reserve capacity
- 500 minutes
- Cold cranking amps
- 2250 A cold cranking amps (CCA)
- Cranking amps, hot, marine and cold
- 2700 A marine cranking amps (MCA)
“Voltage 12”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“Cycles over 900 times at 50% depth of discharge”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“Internal Resistance (mΩ) 1.5”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“Pulse (5 second) Hot Cranking Amps (PHCA) 3125”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“20Hr Nominal Capacity (Ah) 228”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“ODX-AGM8DK 3125 2700 228 500 20.5 (521) 11.1 (283) 9.5 (242) 9.3 (237) 187 (85.0)”
Source: odysseybattery.com/wp-content/uploads/sites/2/amer-odyssey-batteries-for-marine-applications.pdf
“Reserve Capacity Minutes 500”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“ODX-AGM8DK 3125 2700 228 500 20.5 (521) 11.1 (283) 9.5 (242) 9.3 (237) 187 (85.0)”
Source: odysseybattery.com/wp-content/uploads/sites/2/amer-odyssey-batteries-for-marine-applications.pdf
“Cold Cranking Amps (CCA) 2250”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“MCA 2700”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“ODX-AGM8DK 3125 2700 228 500 20.5 (521) 11.1 (283) 9.5 (242) 9.3 (237) 187 (85.0)”
Source: odysseybattery.com/wp-content/uploads/sites/2/amer-odyssey-batteries-for-marine-applications.pdf
Battery care and safety
- Operating temperature range
- -40°F / -40°C to 176°F / +80°C
- Temperatures it may be stored in
- Optimum storage temperature 68°F / +20°C
- Short-circuit current
- 7500 A
“Operating Temperature Range -40°F / -40°C to 176°F / +80°C”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“Optimum Storage Temperature 68°F / +20°C”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“Short Circuit (A) 7500”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
Size and fit
- Overall dimensions
- 20.5 x 11.1 x 9.5 in (container 9.3)
- Terminals
- SAE
- Stated weight
- 187.00 lbs
“ODX-AGM8DK 3125 2700 228 500 20.5 (521) 11.1 (283) 9.5 (242) 9.3 (237) 187 (85.0)”
Source: odysseybattery.com/wp-content/uploads/sites/2/amer-odyssey-batteries-for-marine-applications.pdf
“Terminal SAE”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
“Weight 187.00 lbs”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
Identity
- What its maker sells it for
- Marine Dual Purpose
- UPC
- 635241140910
“ODYSSEY Marine Dual Purpose batteries are ideal for trolling, starting and for powering the many onboard electronic accessories common in today’s boats.”
Source: odysseybattery.com/wp-content/uploads/sites/2/amer-odyssey-batteries-for-marine-applications.pdf
“UPC 635241140910”
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
Sources
- Archived document
Source: odysseybattery.com/wp-content/uploads/sites/2/amer-odyssey-batteries-for-marine-applications.pdf
Retrieved October 8, 2026
- Archived document
Source: odysseybattery.com/products/odx-agm8dk-battery-sms-agm8dk
Retrieved October 8, 2026