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Rolls Battery 8 HHG 25P

The Rolls Battery 8 HHG 25P is a battery pack with a reserve capacity of 660 Minutes and a weight of 130 Lbs.

Last updated: 27 October 2026

Battery and charging

Charging voltage range
2.45-2.5 V/cell @ 25°C (77°F)

Row from the maker’s page: “Charge Voltage Range” | “2.45-2.5 V/cell @ 25°C (77°F)”

Source: rollsbattery.com/battery/8-hhg-25p

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: 275

“SERIES 4000 8 HHG 25P SPEC 275 1239 1549 62.2 cm x 18.7 cm x 29.2 cm 59 kg”

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

Reserve capacity
660 Minutes

Row from the maker’s page: “Reserve Capacity (RC @ 25A)” | “660 Minutes”

Source: rollsbattery.com/battery/8-hhg-25p

Minutes at 75 A
220 Minutes

Row from the maker’s page: “Reserve Capacity (RC @ 75A)” | “220 Minutes”

Source: rollsbattery.com/battery/8-hhg-25p

Cold cranking amps
CCA @ -18°C (0°F): 1239

“SERIES 4000 8 HHG 25P SPEC 275 1239 1549 62.2 cm x 18.7 cm x 29.2 cm 59 kg”

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

Float voltage
2.25 V/cell @ 25°C (77°F)

Row from the maker’s page: “Float Voltage Range” | “2.25 V/cell @ 25°C (77°F)”

Source: rollsbattery.com/battery/8-hhg-25p

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/8-hhg-25p

Cranking amps, hot, marine and cold
MCA @ 0°C (32°F): 1549

“SERIES 4000 8 HHG 25P SPEC 275 1239 1549 62.2 cm x 18.7 cm x 29.2 cm 59 kg”

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

Size and fit

Weight
130 Lbs

“SERIES 4000 8 HHG 25P SPEC 275 1239 1549 24,5” x 7.38” x 11.5” 130 Lbs”

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

Overall dimensions
L x W x H incl. terminal: 62.2 cm x 18.7 cm x 29.2 cm

“SERIES 4000 8 HHG 25P SPEC 275 1239 1549 62.2 cm x 18.7 cm x 29.2 cm 59 kg”

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

Terminals
Flag L

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

Source: rollsbattery.com/battery/8-hhg-25p

Stated weight
Weight: 59 kg

“SERIES 4000 8 HHG 25P SPEC 275 1239 1549 62.2 cm x 18.7 cm x 29.2 cm 59 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/8-hhg-25p

Group the maker sells it as
BCI column: SPEC

“SERIES 4000 8 HHG 25P SPEC 275 1239 1549 62.2 cm x 18.7 cm x 29.2 cm 59 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

  • 8 HHG 25P | Rolls BatteryArchived document

    Source: rollsbattery.com/battery/8-hhg-25p

    Retrieved October 16, 2026