We do not sell these, but Chase can be used with an external power pack. The power input for Chase is 24v at 2.5A so a power pack that can output 60W would be ideal, however we have found that even a 45W version is suitable under most circumstances even if it does slightly lower the power. You’ll also want to make sure that you have a suitable cable with a 5.5 x2.5mm barrel jack to plug into Chase.
Here are some links to the two power packs and cables that we have tested. The Chase kit ships with the cable you would need it you want to purchase a rechargeable, portable power pack. See image below:
Here are some samples of power packs for your convenience, they're not meant to be recommendations as there are many, varied power packs available and you're welcome to try any compatible one you like using the specs listed above.
65W Power Pack- https://amzn.to/3ThSUHU
45W Power Pack- https://amzn.to/3wTMt6d
In case you need to replace your USB cable here are the specs and a couple of links you can use.
USB C to DC 5.5 x 2.5 Cable
https://amzn.to/49TKhKu
or
https://amzn.to/3TjvCS3