Lynovation CTR2-MIDI and CTR2-Micro Battery Add-on

March 2025: Updated the case to improve the switch access on the underside as well as increasing the size of the USB entry on the back.

Unlock truly wireless operation of the CTR2-MIDI (or reduce need for a power connection when using the CTR2-Micro).

I've designed and built this as a user of CTR2-MIDI. This product includes:

• A 1400mAh LiPo rechargeable battery which will power the CTR2-MIDI or CTR2-Micro for about 10 hours.
• A charging and control board for providing power.
• A high quality (plant based) PLA case which will mount to the bottom of the CTR2-MIDI and CTR2-Micro.
• All assembled and ready to mount and plug in.