I have sauldered a battery attachment to power my Mkr zero with a 9v battery however it doesnt work, the battery for sure Works as i tested it with a nano. What could be the issue here?
Hi @jdjwubs626. The battery connector must only be used with 1S Li-Po batteries:
Supported battery Li-Po Single Cell, 3.7V, 1024mAh Minimum
It can not be used with a 9 V Alkaline battery as you are attempting to do.
Thanks but will a 3.7v battery be enough for a servo?

