I love this little mount, very affordable. I 3D printed the TalentCell power supply bracket and attached it with my own screws (see pictures). Here is the battery: https://www.amazon.com/gp/product/B00ME3ZH7C/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 Works great. You can download the model from thingiverse here: https://www.thingiverse.com/thing:3539640