Recommended battery for powering PXI chassis

Hello,

We need to be able to power a PXI chassis for acoustic measurements with no access to the mains network. Our preferred option is to power it using a low-cost battery and inverter, that is with 230VAC, but we are concerned about the impact of dropping battery voltage and inverter stability on measurement accuracy. We would be very grateful for any advice with regards to the suitability of the battery system suggested below, as well as with regards to other recommended solutions for remote powering a PXI chassis. For reference, the hardware is:

- PXIe-1071 chassis

- PXIe-8880 controller

- PXIe-4497 DAQ card for microphone measurements

and the battery and inverter we're considering are:

https://greencell.global/en/ups-and-agm-accumulators/2358-green-cell-agm-12v-84ah-vrla-battery-gel-deep-cycle-powerchair-photovoltaic-leisure-battery-campervan.html

https://greencell.global/en/power-inverters/2770-green-cell-car-power-inverter-converter-12v-to-230v-500w1000w-pure-sine.html

Thanks in advance for any advice.