Bypass Capacitor Selection for E Series

Hi! Im redesigning the E Series board and I had a question about the bypass capacitors on Vin. I will be using the E Series LTE and 3G versions. With the Particle E Series Evaluation board, the capacitors on VIN are left unpopulated. Why is this? Also, to populate them, what values should I select?

I am powering through a 1S3P 15AH battery pack and a 6W solar panel connected to VIN. The datasheet shows a 10nF and 100nF capacitor on C1 and C2 while the BOM lists 10uF on each. For C7 and C6, the BOM lists 100uF on each. Thank you!