@madtrout, I'm not sure if this will help, but take a look at this discussion: https://tab-rv.vanillacommunity.com/discussion/11608/leaking-black-water-tank#latest (View Post)
@Rollingztone, we too had no problem using the Norcold N180.3 at the Grand Canyon (7460') in April. It also worked well at 7650' in the California High Sierras in May. (View Post)
"Thermal Runaway?" Apparently, it can happen in all types of batteries. https://dragonflyenergy.com/thermal-runaway/#:~:text=Thermal%20runaway%20is%20a%20chain,to%20occur%20inside%20the%20b… (View Post)
@newcamp, I have not personally used these providers, but I kept the links in case someone asked: Lettering: https://lettering.com/vinyl-lettering/?fbclid=IwAR38uacdxL07pOVcUNrzwnteE1uj5jnK6tjb30Owrl… (View Post)