U.S. Battery US AGM305
The U.S. Battery US AGM305 is a battery pack with a nominal voltage of 6 V (the section this model is printed under) and AGM (sealed) cells.
Last updated: 8 October 2026
Battery and charging
- Voltage
- 6 V (the section this model is printed under)
- Chemistry
- AGM (sealed)
- Capacity, at the 20-hour rate
340 Ah at the 20-hour rate
U.S. Battery — Specification Guide · retrieved 11 September 2026
“US AGM305 340 306 DUAL 240 790”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
312 Ah at the 20-hour rate
usb_spec_10_20.pdf · retrieved 8 October 2026
“US AGM 305 312 273 865 208 736”
Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf
- Capacity, at the 5-hour rate
306 Ah at the 5-hour rate
U.S. Battery — Specification Guide · retrieved 11 September 2026
“US AGM305 340 306 DUAL 240 790”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
273 Ah at the 5-hour rate
usb_spec_10_20.pdf · retrieved 8 October 2026
“US AGM 305 312 273 865 208 736”
Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf
- Reserve capacity
790 minutes at 25 A
U.S. Battery — Specification Guide · retrieved 11 September 2026
“US AGM305 340 306 DUAL 240 790”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
736 minutes at 25 A
usb_spec_10_20.pdf · retrieved 8 October 2026
“US AGM 305 312 273 865 208 736”
Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf
- Minutes at 75 A
240 minutes at 75 A
U.S. Battery — Specification Guide · retrieved 11 September 2026
“US AGM305 340 306 DUAL 240 790”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
208 minutes at 75 A
usb_spec_10_20.pdf · retrieved 8 October 2026
“US AGM 305 312 273 865 208 736”
Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf
“6 VOLT AGM DEEP CYLE”
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
The maker’s own documents give different figures
The maker’s own documents give different figures
The maker’s own documents give different figures
The maker’s own documents give different figures
Size and fit
- Overall dimensions
Length 11.61 in (295 mm), width 7 in (178 mm), height 14.3 in (364 mm)
U.S. Battery — Specification Guide · retrieved 11 September 2026
“11.61 (295) 7 (178) 14.3 (364)”
Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf
Length 11.61 in (295 mm), width 7.09 in (180 mm), height 14.41 in (366 mm)
usb_spec_10_20.pdf · retrieved 8 October 2026
“11.61 (295) 7.09 (180) 14.41 (366)”
Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf
- Terminals
- Terminals: DUAL
The maker’s own documents give different figures
“US AGM305 340 306 DUAL 240 790”
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
- Archived document
Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf
Retrieved October 8, 2026