We suggest the Bravo BTP 12 pump - a decent 12 vault. Also, check out the link for our article on the top electric pumps we recommend: https://redpaddleco.com/en-gb/paddle-boarding-know/choosing-electric-pump-inflatables/
We supply an adapter with a Schrader valve to help you connect your electric pump. This can be found on our website here. https://red-equipment.co.uk/products/schrader-valve-adaptor