I have posted information about some batteries and a charger I have been very happy with in the past. I know when people first visit this forum they don't feel like skimming through 85 pages, so here are the links again. The batteries are 3500mAh @ 10Amp - you get 4 of them for $37.95 and they come with 2 very handy plastic carrying cases and the charger is $38.99:
https://www.amazon.com/Foxnovo-4-Slots-Battery-Charger-Li-ion/dp/B00OCCNBOE
https://www.amazon.com/gp/product/B01CHQ75AW/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
The charger has a nice LED display for each cell and it will stop charging when a cell reaches full. It also has a capacity function which allows u to determine how many mAh each battery has.
Somewhere WAY back in this thread a member mentioned that they pulled the battery out of the IQ after using it at high temp for a few sessions and how it felt slightly warm, but not hot. I have been doing this regularly and concur - although the IQ itself gets quite warm, the battery is never in danger of over-heating IMO.
I have owned my IQ since late January and have dealt with CS a number of times (not all of them for "issues" - some just questions) and in the beginning I was very nervous about the unresponsiveness. However, I must admit since
@Davinci_vaporizer posted about the CS improvements they have made there has been a night/day difference. Not only is it rare to not be able to get somebody to answer the phone anymore, but the last 2 orders I made shipped out within 2 days of the order and arrived in Michigan 2 days after that. Very satisfactory!
I'm also happy to say that my original unit has performed flawlessly since receiving it. It has never been RMA'd, never gotten "too hot", never shut off unexpectedly, always produced amazing vapor, and now that I have the glass spacers it has transformed into an ultra-versatile unit. One that can be packed with a full oven to enjoy on Smart Path 2 for 10 min and then stir and add spacer to finish the rest later. One that can burn a 1/2 packed oven with a spacer in a 2-5 min session. One that can be used to burn a full oven at Smart Path 4 for 10 min if I really wanna forget what the hell I was just doing before the session!
I have settled on the stock cleaning brush with an ISO wipe wrapped around it immediately after a session keeps the oven very clean (I always blow through the IQ while it's still warm to push alot of residue back into oven to be wiped up by ISO pad). I also carry a small paper clip for inserting and retrieving the glass spacers (it fits through the holes in the spacer). I also carry a nail with a nice big head on it to pack my ovens and also to wrap a dry terry-cloth rag around to dry the oven after it's ISO cleaning (again employing the blow-through method to push any ISO left inside).
I love this little unit so much! Kudos BIGLY to DaVinci for stepping up and showing us customers they are serious about their commitment to us. The 10 year warranty was one of the top reasons that I chose the IQ and when I experienced the early CS efforts, I was very nervous. But now, I'm confident I chose the right device - I need some more DaVinci stickers to put on my guitar case, my golf bag, my laptop, my phone - I a proud marketer nowadays!
Peese!