Setup:
- Christmas demo, on loop, no sound
- IPS mod
- Display set to X brightness
Results:
- 1v2 Gumstick 1450mAh: 3h28
- AA Duracel Optimum (baseline): 4h59
- 1v5 AA Li Ion USB 2600mAh: 5h35
- 1v2 Eneloop Pro 2000mAh: 7h52
- 3v7 14500 1000mAh + Buck: 9h16
Notes:
- I've found an AA 3500mAh Lithium batteries, £23 for 4 though - ouch
- The Buck is this converted from Adafruit https://www.adafruit.com/product/4711 with the 453KΩ resistor (marked 64D) swapped for 150KΩ resistor
Links:
- Gumstick: https://www.amazon.co.uk/gp/product/B0052975IY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
- AA Duracel: https://www.amazon.co.uk/dp/B093Q5XY66?psc=1&ref=ppx_yo2ov_dt_b_product_details
- 1v5 AA: https://www.amazon.co.uk/dp/B08C7SQTMW?psc=1&ref=ppx_yo2ov_dt_b_product_details
- 1v2 Eneloop: https://www.amazon.co.uk/Panasonic-Eneloop-Rechargeable-4BE-Batteries-Black/dp/B00JWC40JY/ref=sr_1_3
- 3v7 + buck: https://www.ebay.co.uk/itm/364467096342?var=633971555638 + https://www.adafruit.com/product/4711 (with resistor 64D swapped for 150K resistor)