Battery Storage Capacity
The State of Charge operating range of the VOLTstack (0-100%) is based on the capacity listed below, and incorporates a
reserve from the maximum capacity of the battery. The VOLTstack can be used from 0 to 100% State of Charge on a regular
basis.
The DC operating voltage range and nominal storage capacity of your VOLTstack is listed in the table below.
Battery Monitor State of Charge
The State of Charge of the VOLTstack will reduce over time according to the Power Mode and Power State. This is shown on
the Battery Monitor. The expected Run Time of the VOLTstack can be estimated with the formula below using the total storage
capacity, the State of Charge remaining, and the power rating of the device being powered.
BATTERY SPECIFICATIONS
Battery Cell Chemistry LiFePO4
Voltage
Minimum 24.0
Nominal 25.6
Maximum 27.2
Watt Hours (Wh) Total 5600
Amp Hours (Ah) Total 220
VOLTstack Capacity (Wh) x State of Charge
Device Power Rating (W)
= Run Time (h)
For example, when using a 1000W heater with a VOLTstack 5k at 70% State of Charge:
Run Time assumes the device is using constant power. Equipment can be plugged in without drawing any power. In this case,
see the Idle Power Consumption section. Some other factors such as ambient temperature and device load duty cycle can
aect the Run Time, however this method described above will provide a good estimate.
5600 Wh x 0.7
1000 W
= 3.92 hours Run Time
*Electrical Specifications at 25°C
Version 1.0 September 2019
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