U.S. Battery US AGM8D
The U.S. Battery US AGM8D is a battery pack with a nominal voltage of 12 V (the section this model is printed under), AGM (sealed) cells, 308 Ah at the 20-hour rate, 252 Ah at the 5-hour rate and a reserve capacity of 738 minutes at 25 A.
Last updated: 8 October 2026
Battery and charging
- Voltage
- 12 V (the section this model is printed under)
- Chemistry
- AGM (sealed)
- Capacity, at the 20-hour rate
- 308 Ah at the 20-hour rate
- Capacity, at the 5-hour rate
- 252 Ah at the 5-hour rate
- Reserve capacity
- 738 minutes at 25 A
- Minutes at 75 A
- 180 minutes at 75 A
“12 VOLT AGM DEEP CYCLE”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
“AGM SEALED DEEP CYCLE BATTERIES”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
“US AGM8D 308 252 F14 180 738”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
“US AGM8D 308 252 F14 180 738”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
“US AGM8D 308 252 F14 180 738”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
“US AGM8D 308 252 F14 180 738”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
Size and fit
- Overall dimensions
- Length 20.5 in (521 mm), width 10.6 in (268 mm), height 8.86 in (225 mm)
- Terminals
- Terminals: F14
“20.5 (521) 10.6 (268) 8.86 (225)”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
“US AGM8D 308 252 F14 180 738”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
Sources
- U.S. Battery — Specification GuideManufacturer document
U.S. Battery
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
Retrieved September 11, 2026