NPP Power NPD12-40Ah
The NPP Power NPD12-40Ah is a battery pack with a nominal voltage of 12V (6 cell per unit), a rated capacity of 42 Ah and a capacity of 44.6 Ah at the 20-hour rate.
Last updated: 26 October 2026
Battery and charging
- Voltage
- 12V (6 cell per unit)
- Rated capacity
- 42 Ah
- Internal resistance
- 8.0 mΩ
- Peak instantaneous discharge
- 400A
- Highest charge current it will take
- 12A
- Capacity, at the 20-hour rate
- 44.6 Ah
- How fast it loses charge sitting idle
- ≤3%/month
“Nominal voltage 12V (6 cell per unit)”
Source: npp-power.eu/wp-content/uploads/2025/02/NPD12V-40Ah.pdf
“Nominal capacity at 10 hours rate/10.5V (25°C) 42 Ah”
Source: npp-power.eu/wp-content/uploads/2025/02/NPD12V-40Ah.pdf
“Approx. internal resistance (25°C) 8.0 mΩ”
Source: npp-power.eu/wp-content/uploads/2025/02/NPD12V-40Ah.pdf
“Max. discharge current for 5 seconds 400A”
Source: npp-power.eu/wp-content/uploads/2025/02/NPD12V-40Ah.pdf
“Max. charging current (A) 12A”
Source: npp-power.eu/wp-content/uploads/2025/02/NPD12V-40Ah.pdf
“Capacity (25°C) 20 Hours rate/10.5V 44.6 Ah”
Source: npp-power.eu/wp-content/uploads/2025/02/NPD12V-40Ah.pdf
“Self discharge rate (25°C) ≤3%/month”
Source: npp-power.eu/wp-content/uploads/2025/02/NPD12V-40Ah.pdf
Size and fit
- Terminals
- T14
“Terminal type T14 Torque 5.1+/-0.6”
Source: npp-power.eu/wp-content/uploads/2025/02/NPD12V-40Ah.pdf
Identity
- Model designation
- NPD12-40Ah
“www.npp-power.eu AGM UPS Solar & Wind EV Cyclic Mobility NPD12-40Ah DEEP CYCLE Valve-regulated lead-acid battery SERIES Characteristics Overview Nominal voltage 12V (6 cell per unit) NPP Power Deep Cycle Series are manufactured”
Source: npp-power.eu/wp-content/uploads/2025/02/NPD12V-40Ah.pdf
Sources
- Archived document
Source: npp-power.eu/wp-content/uploads/2025/02/NPD12V-40Ah.pdf
Retrieved October 12, 2026