OK, a month into this and the 808D doesn't get any use anymore. I have the SB, which completely solved the battery issue and have an adapter for the 808D, but I really like the SB with the 510 atomizers. I use a teabag filter for the carts, which steill needs filling often, but the vapor.... wow. The 808D does have better flavor though and I mix my own juice now, so I have the flavors I like. Just wanted to keep this a little up to date