If you are interested in advance notice on the availability of DenCo batteries, please contact me via the shop contact page with a message of which battery you are looking for and I will add you to a waitlist. Demand is high and as soon as one gets listed for sale it gets sold, so I'd like to provide a way for people to be informed instead of always having to check back.
Also coming up in the near future, DIY Battery Build Kits!