Rolls Battery 8 CS 27P
The Rolls Battery 8 CS 27P is a battery pack with a reserve capacity of 2229 Minutes and a weight of 456 Lbs.
Last updated: 27 October 2026
Battery and charging
- Charging voltage range
- 2.45-2.5 V/cell @ 25°C (77°F)
- Battery type
- Flooded (table headed MARINE, FLOODED)
- Capacity, at the 20-hour rate
20 HR column: 929
MARINE-sheet.pdf · retrieved 8 October 2026
“SERIES 5000 8 CS 27P SPEC 929 2264 2830 71.8 cm x 28.6 cm x 46.4 cm 207 kg”
Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf
20 HR RATE: 853 (the MARINE sheet prints 929)
Rolls-Battery-Renewable-Energy.pdf · retrieved 8 October 2026
“8 CS 27P 853 SPEC. FLAG 28.25” | 71.8cm 8.25” | 21.0cm 18.25” | 46.4cm 456lbs | 207kg”
Source: rollsbattery.com/wp-content/uploads/2019/11/Rolls-Battery-Renewable-Energy.pdf
- Reserve capacity
- 2229 Minutes
- Minutes at 75 A
- 743 Minutes
- Cold cranking amps
- CCA @ -18°C (0°F): 2264
- Float voltage
- 2.25 V/cell @ 25°C (77°F)
- How fast it loses charge sitting idle
- 5%-10% per month at 25°C (77°F)
- Cranking amps, hot, marine and cold
- MCA @ 0°C (32°F): 2830
Row from the maker’s page: “Charge Voltage Range” | “2.45-2.5 V/cell @ 25°C (77°F)”
Source: rollsbattery.com/battery/8-cs-27p
“FLOODED MODEL BCI 20 HR CCA MCA DIMENSIONS WEIGHT”
Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf
The maker’s own documents give different figures
Row from the maker’s page: “Reserve Capacity (RC @ 25A)” | “2229 Minutes”
Source: rollsbattery.com/battery/8-cs-27p
Row from the maker’s page: “Reserve Capacity (RC @ 75A)” | “743 Minutes”
Source: rollsbattery.com/battery/8-cs-27p
“SERIES 5000 8 CS 27P SPEC 929 2264 2830 71.8 cm x 28.6 cm x 46.4 cm 207 kg”
Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf
Row from the maker’s page: “Float Voltage Range” | “2.25 V/cell @ 25°C (77°F)”
Source: rollsbattery.com/battery/8-cs-27p
Row from the maker’s page: “Self-Discharge Rate” | “5%-10% per month at 25°C (77°F)”
Source: rollsbattery.com/battery/8-cs-27p
“SERIES 5000 8 CS 27P SPEC 929 2264 2830 71.8 cm x 28.6 cm x 46.4 cm 207 kg”
Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf
Size and fit
- Weight
- 456 Lbs
- Overall dimensions
L x W x H incl. terminal: 71.8 cm x 28.6 cm x 46.4 cm
MARINE-sheet.pdf · retrieved 8 October 2026
“SERIES 5000 8 CS 27P SPEC 929 2264 2830 71.8 cm x 28.6 cm x 46.4 cm 207 kg”
Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf
28.25” x 8.25” x 18.25” (71.8 x 21.0 x 46.4cm)
Rolls-Battery-Renewable-Energy.pdf · retrieved 8 October 2026
“8 CS 27P 853 SPEC. FLAG 28.25” | 71.8cm 8.25” | 21.0cm 18.25” | 46.4cm 456lbs | 207kg”
Source: rollsbattery.com/wp-content/uploads/2019/11/Rolls-Battery-Renewable-Energy.pdf
- Terminals
Terminal type: FLAG
Rolls-Battery-Renewable-Energy.pdf · retrieved 8 October 2026
“8 CS 27P 853 SPEC. FLAG 28.25” | 71.8cm 8.25” | 21.0cm 18.25” | 46.4cm 456lbs | 207kg”
Source: rollsbattery.com/wp-content/uploads/2019/11/Rolls-Battery-Renewable-Energy.pdf
Flag RR
8 CS 27P | Rolls Battery · retrieved 15 October 2026
Row from the maker’s page: “Terminal Type” | “Flag RR”
Source: rollsbattery.com/battery/8-cs-27p
- Stated weight
- Weight: 207 kg
- Terminal thread
- 5/16"-18
- Group the maker sells it as
- BCI column: SPEC
“SERIES 5000 8 CS 27P SPEC 929 2264 2830 28.25” x 11.25” x 18.25” 456 Lbs”
Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf
The maker’s own documents give different figures
The maker’s own documents give different figures
“SERIES 5000 8 CS 27P SPEC 929 2264 2830 71.8 cm x 28.6 cm x 46.4 cm 207 kg”
Source: rollsbattery.com/wp-content/uploads/2019/11/MARINE-sheet.pdf
Row from the maker’s page: “Size & Thread” | “5/16"-18”
Source: rollsbattery.com/battery/8-cs-27p
“SERIES 5000 8 CS 27P SPEC 929 2264 2830 71.8 cm x 28.6 cm x 46.4 cm 207 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
- Archived document
Source: rollsbattery.com/wp-content/uploads/2019/11/Rolls-Battery-Renewable-Energy.pdf
Retrieved October 8, 2026
- 8 CS 27P | Rolls BatteryArchived document
Source: rollsbattery.com/battery/8-cs-27p
Retrieved October 16, 2026