I currently have a bq25504 with my load connected to VSTOR as per the datasheet, and a single cell Li-Ion battery connected to VBAT. I was curious as to maximum current draw I could get from VSTOR. I have a device that can require up to a 1.5A spike and I'm almost sure the battery has the capability however my device resets itself. I think it may be because it's not getting enough power from the bq25504 or the switch between it and my main batter is causing a droop in the voltage. The lithium thionyl battery is my main nonrechargable power source wired in parallel with the bq25504 with diodes on each. There appears to be, from http://www.ti.com/lit/ds/symlink/bq25504.pdf page 9, a FET that controls the flow from VBAT to VSTOR that may or may not be able to handle the current spikes. Any advice would be helpful, thank you in advance.
After some testing, I've determined the internal FET can handle the current for my device.
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