Super B Mason 12V20Ah
The Super B Mason 12V20Ah is a battery pack with a nominal voltage of 12.8V, a nominal capacity of 20, a capacity of 20Ah, LiFePO4 cells, dimensions of 255 x 101 x 171mm, a weight of 4.6kg and an ingress rating of IP66.
Last updated: 31 October 2026
Battery and charging
- Capacity (amp-hours)
- 20Ah
- Battery chemistry
- Cylindrical - LiFePO4
- Voltage
- 12.8V
- Chemistry
- LiFePO4
- Rated charge cycles
- Sources disagree
1000
“Cycle Life >1000 (at 10C discharge, 100% DoD)”
Source: super-b.com/products/mason-12v20ah
>1000 (at 10C discharge, 100% DoD)
“Cycle Life >1000 (at 10C discharge, 100% DoD)”
Source: super-b.com/products/mason-12v20ah
- Case material
- PC - ABS
- Nominal capacity
- 20
- Maximum discharge current, as the maker labels it
- 260
- Maximum charge current, as the maker labels it
- 66
“specifications Electrical specifications Nominal Capacity 20Ah”
Source: super-b.com/products/mason-12v20ah
“Cell Type / Chemistry Cylindrical - LiFePO4”
Source: super-b.com/products/mason-12v20ah
“nominal capacity 20Ah nominal voltage 12.8V”
Source: super-b.com/products/mason-12v20ah
“Cell Type / Chemistry Cylindrical - LiFePO4”
Source: super-b.com/products/mason-12v20ah
“Weight 4.6kg / 10.1lbs Case Material PC - ABS”
Source: super-b.com/products/mason-12v20ah
“nominal capacity 20Ah nominal voltage 12.8V”
Source: super-b.com/products/mason-12v20ah
“Discharge Current Continuous 260A”
Source: super-b.com/products/mason-12v20ah
Source: super-b.com/products/mason-12v20ah
“Charge Voltage 14.3V - 14.6V Max. Charge Current 66A”
Source: super-b.com/products/mason-12v20ah
Battery care and safety
- Ingress protection
- IP66
- Temperatures it works in
- -30°C to 55°C / -22°F to 131°F
“Ingresss Protection IP66 Cell Type / Chemistry Cylindrical - LiFePO4”
Source: super-b.com/products/mason-12v20ah
“Discharge Temperature -30°C to 55°C / -22°F to 131°F”
Source: super-b.com/products/mason-12v20ah
Size and fit
- Weight
- 4.6kg
- Weight
- 10.1lbs
- Overall dimensions
- 255 x 101 x 171mm
“Dimensions (LxWxH) 255 x 101 x 171mm / 10.0” x 4.0” x 6.7” Weight 4.6kg / 10.1lbs”
Source: super-b.com/products/mason-12v20ah
“Dimensions (LxWxH) 255 x 101 x 171mm / 10.0” x 4.0” x 6.7” Weight 4.6kg / 10.1lbs”
Source: super-b.com/products/mason-12v20ah
“dimensions 255 x 101 x 171mm / 10.0” x 4.0” x 6.7””
Source: super-b.com/products/mason-12v20ah
Sources
- Mason 12V20Ah | Starter Battery by Super BArchived document
Source: super-b.com/products/mason-12v20ah
Retrieved October 29, 2026