4g Battery drain?

[Nycokla]

So when I have my 4g going my battery drains a hell of a lot faster than when I have wifi on all the time..? The 4g I get is actually hspa+ but previous phones its been the opposite. Wifi would drain if I left it on

 

[colnago]

All of my phone last 4-5 times longer via WI- (no SIM card installed) than when on cellular data (e.g. 5-7 days between charges). That said, I'm at work, on LTE, with screen brightness just above 0%, with the phone charging on a 1500mA power supply, and my battery level is actually going "down" while running Jump Desktop (maybe pulling down 2MN of data per hour).

While I've always believed that the Note's screen was it's largest battery drain, I wouldn't discount it's "weakish" reception as a culprit. I've found that the Note will show (4) bars with only a -95dBm signal. Seems ambitious given that calls start to fail at -105dBm. Either way, at those levels, battery typically drains faster than when in better signal conditions.

 

[dlcpa]

All of my phone last 4-5 times longer via WI- (no SIM card installed) than when on cellular data (e.g. 5-7 days between charges). That said, I'm at work, on LTE, with screen brightness just above 0%, with the phone charging on a 1500mA power supply, and my battery level is actually going "down" while running Jump Desktop (maybe pulling down 2MN of data per hour).

While I've always believed that the Note's screen was it's largest battery drain, I wouldn't discount it's "weakish" reception as a culprit. I've found that the Note will show (4) bars with only a -95dBm signal. Seems ambitious given that calls start to fail at -105dBm. Either way, at those levels, battery typically drains faster than when in better signal conditions.

Most important msg here is get a phone with interchangeable batteries when you have 4G.

 

[colnago]

Most important msg here is get a phone with interchangeable batteries when you have 4G.

Well, I think battery drain has more to do with quality of signal, than connection protocol. FWIW, I've been in Philly all day with fully charged Defy, on T-Mo HSPA, and the Note, on AT&T HSPA (no LTE in Philly yet?).

Defy has been idle most of the day, save for a few texts, and 5 min of calls, w/signal stable around the -85dBm level. The Note has been used for about 15min of browsing, and about 1/2 an hour of Jump Desktop (via cell data) w/signal bouncing between -99dBm and -87dBm....Defy has 90% battery left, and Note only 25%.

So yeah, I've been carrying extra batteries for a few years now.