Originally Posted by nexus7lte
How is your battery after leaving wifi tether on all the time? Does tasker have a profile to use it only at certain times? i guess it must be a lot better than mine- the galaxy nexus i just replaced ran out of juice too quickly for that to be an option. With my new moto x, that may be an option i will try, especially since they use different size sim cards- need adapter.
Short answer: 5% to 10% per hour battery consumption on the Samsung Galaxy S4 (verizon) using the latest Cyanogenmod 10.2
The phone consumed 18% battery for the last 3 hours 7 minutes. However the entire time I have been in a WiFi area, so the N7LTE is not WiFi connected to the phone. The phone's WiFi hotspot is ON, but I suspect its LTE radio will use more battery power if it actually has data to transmit on behalf of the tablet.
I do not use Tasker.
It is nice that the N7LTE tablet and my Samsung Galaxy S4 (verizon) use the same size SIM card.
However, you should consider the following:
1. The vast majority of the time I am in a WiFi area. This means the N7LTE tablet is not WiFi connected to the phone. This is assured by using the free "WiFi Prioritizer" app. Minimizing use of the phone's Wifi hotspot assures lower plan data usage (I do not have unlimited data).
2. The phone is only touched for phone calls, so at some point I think it goes to deep sleep which reduces battery usage. Or perhaps Wifi Hotspot being on will not allow it to go to sleep?
3. Texts are handled by the free Verizon Messaging app running on the tablet - because all apps look and operate nicer on a tablet.
4. Phone is only used for actual voice cell phone calls.
There are other alternatives I can use, but they will modestly increase the monthly costs. For example I can move the phone's verizon microSIM card back into the N7LTE and:
1. Pay Skype $5 per month for a SKYPE phone number and $3 per month for unlimited calling to USA real phone numbers. Skype has a reputation of working very well - unlike google voice. This is back to carrying around only the N7LTE tablet, but paying for Skype because Google Voice is not reliable for me. OR,
2. Activate one of my old verizon dumb-phones for $10 per month and use that for actual phone calls. In this scenario the tablet gets its DATA via the verizon microSIM card inside it via LTE. A dumb phone is much smaller and lighter than a smart phone, and the battery charge lasts much much longer.