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U.S. Battery US AGM31

The U.S. Battery US AGM31 is a battery pack with a nominal voltage of 12 V (the section this model is printed under) and AGM (sealed) cells.

Last updated: 8 October 2026

Battery and charging

Voltage
12 V (the section this model is printed under)

“12 VOLT AGM DEEP CYCLE”

Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf

Chemistry
AGM (sealed)

“AGM SEALED DEEP CYCLE BATTERIES”

Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf

Capacity, at the 20-hour rate

The maker’s own documents give different figures

117 Ah at the 20-hour rate

U.S. Battery — Specification Guide · retrieved 11 September 2026

“US AGM31 117 96 F12 45 207”

Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf

100 Ah at the 20-hour rate

usb_spec_10_20.pdf · retrieved 8 October 2026

“US AGM 31 100 85 960 52 190”

Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf

Capacity, at the 5-hour rate

The maker’s own documents give different figures

96 Ah at the 5-hour rate

U.S. Battery — Specification Guide · retrieved 11 September 2026

“US AGM31 117 96 F12 45 207”

Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf

85 Ah at the 5-hour rate

usb_spec_10_20.pdf · retrieved 8 October 2026

“US AGM 31 100 85 960 52 190”

Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf

Reserve capacity

The maker’s own documents give different figures

207 minutes at 25 A

U.S. Battery — Specification Guide · retrieved 11 September 2026

“US AGM31 117 96 F12 45 207”

Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf

190 minutes at 25 A

usb_spec_10_20.pdf · retrieved 8 October 2026

“US AGM 31 100 85 960 52 190”

Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf

Minutes at 75 A

The maker’s own documents give different figures

45 minutes at 75 A

U.S. Battery — Specification Guide · retrieved 11 September 2026

“US AGM31 117 96 F12 45 207”

Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf

52 minutes at 75 A

usb_spec_10_20.pdf · retrieved 8 October 2026

“US AGM 31 100 85 960 52 190”

Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf

Size and fit

Overall dimensions

The maker’s own documents give different figures

Length 12.9 in (328 mm), width 6.77 in (172 mm), height 8.66 in (220 mm)

U.S. Battery — Specification Guide · retrieved 11 September 2026

“12.9 (328) 6.77 (172) 8.66 (220)”

Source: usbattery.com/wp-content/uploads/2025/10/usb_spec_325.pdf

Length 13.7 in (348 mm), width 6.85 in (174 mm), height 9.37 in (238 mm)

usb_spec_10_20.pdf · retrieved 8 October 2026

“13.7 (348) 6.85 (174) 9.37 (238)”

Source: usbattery.com/wp-content/uploads/2022/11/usb_spec_10_20.pdf

Terminals
Terminals: F12

“US AGM31 117 96 F12 45 207”

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