I am trying out a WP820 for possible roll-out to my customers who would like a Wi-Fi solution.
However, I am having some weird battery life issues with it. I am running the latest firmware.
First day with the phone: I took the phone off the base (fully charged and already configured.) This was probably late morning. It laid on my desk, unused. An hour later, it was down to 89% charge. I didn’t use it at all that day, and by late that night, it was completely dead. This experience repeated itself for several days.
Fast-forward to last Wednesday, when I was out of my home office most of the day: I took the phone with me. First went to a business partner’s house (who uses the same Ubiquiti APs I have at home), powered the phone on, connected it to his network, didn’t make any calls. When I left, I powered the phone off, went to our corporate office (also using the same Ubiquiti gear), powered it on, connected there. Stayed a few hours, powered off, went home. Interestingly, at this point, the battery was still just above 90% charge. So, I started thinking something on my home network/Wi-Fi had something to do with it.
Once I got home, I powered the phone back on, left it laying on the bed, and left for the evening. When I went to bed around midnight, I grabbed the phone to charge it – and it was about 88% (if memory serves me right – it was definitely in the high 80s, though.) Odd. Rules out something with my network.
The next day, took the phone off its base, and within an hour, back to 89%.
That has repeated every day since. I’ve tried switching the phone from UDP to TCP, changing the keepalive/registration intervals to longer, etc. Nothing has helped. I’ve even connected it to my U-verse gateway’s built-in Wi-Fi, just to rule out my Ubiquiti gear. No luck.
Yesterday, I decided to mess with the band configuration – it seems to move between 2.4GHz and 5GHz depending on where I am in the house. I selected 5GHz only. Seemed to help a little, but not much. However, as the afternoon wore on yesterday, the battery drain stopped. I actually left the phone in the bedroom all night (and it showed it was connected via 2.4GHz – despite the fact the network settings are 5GHz only in the phone), this morning woke up and it was at 70%.
It’s charging now, and I suspect when I take it back off the base, it’ll be back to 89% within an hour.
Seems like most days the battery life is horrid, and then some days it randomly does very, very well.
Anyone else seeing this, or any idea of a possible fix? I’d like to be able to roll these things out, but I need to figure out how to get the battery life fixed.