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Rolls Battery 12 HHG 185P

The Rolls Battery 12 HHG 185P is a battery pack with a reserve capacity of 444 Minutes and a weight of 121.5 Lbs.

Last updated: 27 October 2026

Battery and charging

Charging voltage range
14.7-15 V/cell @ 25°C (77°F)

Row from the maker’s page: “Charge Voltage Range” | “14.7-15 V/cell @ 25°C (77°F)”

Source: rollsbattery.com/battery/12-hhg-185p

Battery type
Flooded (table headed MARINE, FLOODED)

“FLOODED MODEL BCI 20 HR CCA MCA DIMENSIONS WEIGHT”

Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf

Capacity, at the 20-hour rate
20 HR column: 185

“SERIES 4000 12 HHG 185P 4D MOD 185 713 891 52.7 cm x 22.2 cm x 25.4 cm 55 kg”

Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf

Reserve capacity
444 Minutes

Row from the maker’s page: “Reserve Capacity (RC @ 25A)” | “444 Minutes”

Source: rollsbattery.com/battery/12-hhg-185p

Minutes at 75 A
148 Minutes

Row from the maker’s page: “Reserve Capacity (RC @ 75A)” | “148 Minutes”

Source: rollsbattery.com/battery/12-hhg-185p

Cold cranking amps
CCA @ -18°C (0°F): 713

“SERIES 4000 12 HHG 185P 4D MOD 185 713 891 52.7 cm x 22.2 cm x 25.4 cm 55 kg”

Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf

How fast it loses charge sitting idle
5%-10% per month at 25°C (77°F)

Row from the maker’s page: “Self-Discharge Rate” | “5%-10% per month at 25°C (77°F)”

Source: rollsbattery.com/battery/12-hhg-185p

Cranking amps, hot, marine and cold
MCA @ 0°C (32°F): 891

“SERIES 4000 12 HHG 185P 4D MOD 185 713 891 52.7 cm x 22.2 cm x 25.4 cm 55 kg”

Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf

Size and fit

Weight
121.5 Lbs

“SERIES 4000 12 HHG 185P 4D MOD 185 713 891 20.75” x 8.75” x 10” 121.5 Lbs”

Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf

Overall dimensions
L x W x H incl. terminal: 52.7 cm x 22.2 cm x 25.4 cm

“SERIES 4000 12 HHG 185P 4D MOD 185 713 891 52.7 cm x 22.2 cm x 25.4 cm 55 kg”

Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf

Terminals
Flag

Row from the maker’s page: “Terminal Type” | “Flag”

Source: rollsbattery.com/battery/12-hhg-185p

Stated weight
Weight: 55 kg

“SERIES 4000 12 HHG 185P 4D MOD 185 713 891 52.7 cm x 22.2 cm x 25.4 cm 55 kg”

Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf

Terminal thread
5/16"-18

Row from the maker’s page: “Size & Thread” | “5/16"-18”

Source: rollsbattery.com/battery/12-hhg-185p

Group the maker sells it as
BCI column: 4D MOD

“SERIES 4000 12 HHG 185P 4D MOD 185 713 891 52.7 cm x 22.2 cm x 25.4 cm 55 kg”

Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf

Sources

  • Archived document

    Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf

    Retrieved October 8, 2026

  • 12 HHG 185P | Rolls BatteryArchived document

    Source: rollsbattery.com/battery/12-hhg-185p

    Retrieved October 16, 2026