Scope Battery? - Page 1
Forum section: electronics / beginners

author: tony3d
author_rank: Frequent Contributor
timestamp: November 30, 2013, 09:19:07 pm
content: Hi guys, I just got my new Owon SDS-7102 Scope today. Haven't had anytime time to really play withe it, but I am charging the battery right now, and I was just wondering if it's ok to leave the battery in the scope permanently even when powering off the mains, or should I remove it?

author: Zbig
author_rank: Frequent Contributor
timestamp: November 30, 2013, 09:36:21 pm
content: If you're going to use the battery power only occasionally and you don't mind the inconvenience, you could store it in a cool place in a half-discharged state to slow down the aging process. That's way most of the laptops now come with software which offers you an option to charge the battery to ~80% only.

author: tony3d
author_rank: Frequent Contributor
timestamp: November 30, 2013, 11:28:04 pm
content: If I leave the battery in, it can't be over charged correct? I really don't want to have to take it out all the time. The screws are very inconvenient.

author: Zbig
author_rank: Frequent Contributor
timestamp: December 01, 2013, 09:18:30 am
content: Correct. All properly designed equipment utilizing Li-Io/Po batteries could be powered from mains indefinitely without any damage to the battery.<aside rant>The same goes for mobile phones. It pisses the hell out of me when my Samsung Galaxy SIII beeps at me in the middle of the night and lights its LCD up to tell me it's done charging and to disconnect the charger this very instant. Because of some eco bullshit. It's just retarded and unfounded from both the engineering and "ecological" point of view. It just shows how little the software team knows about hardware and how poorly the both teams communicate, if anything.</aside rant>

author: tony3d
author_rank: Frequent Contributor
timestamp: December 01, 2013, 09:44:01 am
content: Quote from: Zbig on December 01, 2013, 09:18:30 amLOL!

author: GrandTheftAuto4life
author_rank: Contributor
timestamp: December 01, 2013, 11:08:12 am
content: Quote from: Zbig on December 01, 2013, 09:18:30 amI only get a notification to unplug the charger if i disconnect my phone from the charger. It doesn't make a sound though.All indication of a decently charged battery is that the status led shows green.Using a Sony Xperia P (LT22i)Quote from: tony3d on December 01, 2013, 09:44:01 amIndeed.

author: Zbig
author_rank: Frequent Contributor
timestamp: December 01, 2013, 11:32:10 am
content: Quote from: GrandTheftAuto4life on December 01, 2013, 11:08:12 amSo it's better than Samsung but still pretty much pointless. Given the high efficiency of today's switching mode chargers (i.e. they waste next to no power under no load), what a business of theirs is it whether you want to keep the charger in the mains socket or not?

author: GrandTheftAuto4life
author_rank: Contributor
timestamp: December 01, 2013, 11:45:01 am
content: Quote from: Zbig on December 01, 2013, 11:32:10 amMost of the time I charge it through the usb port of a nearby computer, so it doesn't really bother me.Like you, I can not really see the point of this, but I thought it could be worth mentioning this.Sideways rant;I have a 2010 Sony LCD TV on which you can hear relay clicks from when turning it on, or if you have turned it off 20 minutes before you hear the click.I think it's some sort of "really low-power mode", only allowing a mcu to sense the soft power-button on the side and decode the remote control signals.Haven't actually bothered to measure the power consumption during these 3 stages.

author: PA4TIM
author_rank: Super Contributor
timestamp: December 01, 2013, 07:20:55 pm
content: My nokia just stops loading when the Phone is charged. I measured power consumption a while back, just out of curiosity. I do not remember the numbers but at first it drew more power and over time the power dropped. When it was charged the meter read zero watt. The charger get a bit warmer while charging but is cold as the Phone is charges.If you want to be sure then measure the power or current to the scope. If it still draws current when powered down, you better pull the plug when you do not use it.