Is it considered cheating to use multiple devices? [closed]

Until such time that I have a power pack I'm considering installing ingress on an old phone so I can keep playing longer. Assuming I can get it running would this constitute cheating? I can't find anything in the terms of service, surprisingly even about using 2 devices at the same time (though I'm not sure what you would gain by doing so)

Since my intention is to increase playing time obviously I intend to use only one device at a time

It's not very clear but using two different devices would/could be considered cheating.

Read the "Cheating" clause on this page where it says:

Remember Ingress is meant to be played on a mobile device

https://support.google.com/ingress/answer/2808360?hl=en

Again one of this post's answers mentions a Niantic founder's (John Hanke) explanation on the matter but it's completely hearsay:

This matches up with what John Hanke described to some players at the recent Amsterdam anomaly (cut 'n pasted from one of those players)
iitc = no ban, no problem
mirror download = no
Google Play Store signature = ban
modded apk = ban
multi device = ok
multi account (via same Play Store signature) = ban
if you use another email on ingress, than you used on Playstore = ok
merchandising = OK as long as its reasonable. if not reasonable, they ask politely to stop. and there could be an opening for licence

http://www.reddit.com/r/Ingress/comments/23y48m/bans_bans_b

And this old post from Niantic's Google Groups era (even if it's not what you mean) warns about account ban.

Question: Has anyone tried log on one account on two phones at two different places? What will happen now? What should happen(official)?

Answer: Players have been reported/banned for this

https://groups.google.com/forum/#!topic/ingress-discuss/2lTvWEUP8wQ

I would suggest you not to use a second device and to buy a battery pack. It should be much easier to carry a battery pack than using a second phone.