Optima D34/78
The Optima D34/78 is a battery pack with a nominal voltage of 12V and AGM cells.
Last updated: 15 October 2026
Battery and charging
- Voltage
- 12V
- Chemistry
- AGM
- Cranking current
- 750
- Capacity, at the 20-hour rate
- 55
- Reserve capacity
- 120
“D34/78 12V 750 870 120 55 .0028 10 1/16" 6 15/16" 7 7/8" 43.5 DUAL SAE/GM 34/78”
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
“powerhouse AGM technologies”
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
“D34/78 12V 750 870 120 55 .0028 10 1/16" 6 15/16" 7 7/8" 43.5 DUAL SAE/GM 34/78”
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
“D34/78 12V 750 870 120 55 .0028 10 1/16" 6 15/16" 7 7/8" 43.5 DUAL SAE/GM 34/78”
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
“D34/78 12V 750 870 120 55 .0028 10 1/16" 6 15/16" 7 7/8" 43.5 DUAL SAE/GM 34/78”
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
Size and fit
- Overall dimensions
- 10 1/16" 6 15/16" 7 7/8"
- Terminals
- DUAL SAE/GM
- Stated weight
- 43.5
- Group the maker sells it as
- 34/78
“D34/78 12V 750 870 120 55 .0028 10 1/16" 6 15/16" 7 7/8" 43.5 DUAL SAE/GM 34/78”
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
“D34/78 12V 750 870 120 55 .0028 10 1/16" 6 15/16" 7 7/8" 43.5 DUAL SAE/GM 34/78”
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
“D34/78 12V 750 870 120 55 .0028 10 1/16" 6 15/16" 7 7/8" 43.5 DUAL SAE/GM 34/78”
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
“D34/78 12V 750 870 120 55 .0028 10 1/16" 6 15/16" 7 7/8" 43.5 DUAL SAE/GM 34/78”
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
Identity
- Model code
- D34/78
“D34/78 12V 750 870 120 55 .0028 10 1/16" 6 15/16" 7 7/8" 43.5 DUAL SAE/GM 34/78”
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
Sources
- Archived document
Source: cdnrg.com/s4x-files/resources/optima-brochure.pdf
Retrieved October 14, 2026