/challenges-projects/design-challenges/hats-off/b/blog/posts/safety-hat-progress-3My lack of planning ahead to leave time for coding included a lack of planning ahead by charging the battery. We’d ordered a 1200mAH battery from AdaFruit Lithium Ion Polymer Battery - 3.7v 1200mAh ID: 258 - $9.95 : Adafruit Industries, Unique ...en-USTelligent Community 12