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Rolls Battery 12 CS 11P

The Rolls Battery 12 CS 11P is a battery pack with a reserve capacity of 891 Minutes and a weight of 271 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-cs-11p

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

Recommended charging
45 A

Row from the maker’s page: “Recommended Charge Current” | “45 A”

Source: rollsbattery.com/battery/12-cs-11p

Capacity, at the 20-hour rate
20 HR column: 371

“SERIES 5000 12 CS 11P SPEC 371 871 1088 55.9 cm x 28.6 cm x 46.4 cm 123 kg”

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

Reserve capacity
891 Minutes

Row from the maker’s page: “Reserve Capacity (RC @ 25A)” | “891 Minutes”

Source: rollsbattery.com/battery/12-cs-11p

Maximum charge current, as the maker labels it
70 A

Row from the maker’s page: “Maximum Charge Current” | “70 A”

Source: rollsbattery.com/battery/12-cs-11p

Minutes at 75 A
297 Minutes

Row from the maker’s page: “Reserve Capacity (RC @ 75A)” | “297 Minutes”

Source: rollsbattery.com/battery/12-cs-11p

Cold cranking amps
CCA @ -18°C (0°F): 871

“SERIES 5000 12 CS 11P SPEC 371 871 1088 55.9 cm x 28.6 cm x 46.4 cm 123 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-cs-11p

Cranking amps, hot, marine and cold
MCA @ 0°C (32°F): 1088

“SERIES 5000 12 CS 11P SPEC 371 871 1088 55.9 cm x 28.6 cm x 46.4 cm 123 kg”

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

Size and fit

Weight
271 Lbs

“SERIES 5000 12 CS 11P SPEC 371 871 1088 22” x 11.25” x 18.25” 271 Lbs”

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

Overall dimensions
L x W x H incl. terminal: 55.9 cm x 28.6 cm x 46.4 cm

“SERIES 5000 12 CS 11P SPEC 371 871 1088 55.9 cm x 28.6 cm x 46.4 cm 123 kg”

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

Terminals

The maker’s own documents give different figures

Terminal type: FLAG

Rolls-Battery-Renewable-Energy.pdf · retrieved 8 October 2026

“12 CS 11P 371 SPEC. FLAG 22” | 55.9cm 11.25” | 28.6cm 18.25” | 46.4cm 271lbs | 123kg”

Source: rollsbattery.com/wp-content/uploads/2019/11/Rolls-Battery-Renewable-Energy.pdf

Flag L

12 CS 11P | Rolls Battery · retrieved 16 October 2026

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

Source: rollsbattery.com/battery/12-cs-11p

Stated weight
Weight: 123 kg

“SERIES 5000 12 CS 11P SPEC 371 871 1088 55.9 cm x 28.6 cm x 46.4 cm 123 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-cs-11p

Group the maker sells it as
BCI column: SPEC

“SERIES 5000 12 CS 11P SPEC 371 871 1088 55.9 cm x 28.6 cm x 46.4 cm 123 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 CS 11P | Rolls BatteryArchived document

    Source: rollsbattery.com/battery/12-cs-11p

    Retrieved October 16, 2026

  • Archived document

    Source: rollsbattery.com/wp-content/uploads/2019/11/Rolls-Battery-Renewable-Energy.pdf

    Retrieved October 8, 2026