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lt.dan58
10-06-2009, 18:58
i have the Aeris XR1 computer i recently purchased from ST and i did my first dive on friday and everything worked great until after my dive... for 2 hours it displayed my dive log and time to fly.... after the 2 hours and for an additional 22 hours it showed my time to fly... i looked in the book and it is suposse to do that but i was wondering if there is a way to turn this feature off.... all input is appreciated
thanks
Dan:icondrool:

snagel
10-06-2009, 19:00
I have a couple other computers and they both stay on for 24 hours after I stop diving.

I think your question is can you manually turn them off within this period possibly to save the battery. I haven't found a way short of removing the battery, but never looked too hard.

Snagel

lt.dan58
10-06-2009, 19:05
snagel
has it affected your battery life?

snagel
10-06-2009, 19:16
I change the battery once a year regardless. To date, I haven't had any issues. Typically, when I change the battery it is still good, but I like to start every year with a fresh battery.

Snagel

nrembis
10-06-2009, 19:16
I have an xr-1 and there is no way to manually turn it off, because of this battery life suffers


edit to add....the battery is a cr2450, I buy them at walmart or my local grocery store even has them for $3.29

clavicl3
10-06-2009, 19:37
There's got to be some kind of button hold combination that turns it off. 24 hours is a long time for that battery to be draining.

ScubaToys Larry
10-06-2009, 19:39
There's got to be some kind of button hold combination that turns it off. 24 hours is a long time for that battery to be draining.

Battery to be draining?? Have you ever seen a digital watch? A LCD screen requires virtually no power. It would go for years just lighting up a screen... don't worry about 24 hours.

lt.dan58
10-06-2009, 19:52
never thought of it like that Larry... thanks for the reassurance

clavicl3
10-06-2009, 20:21
it would affect the battery life nevertheless. even if it is insignificant to some.

Smashee
10-06-2009, 20:36
it would affect the battery life nevertheless. even if it is insignificant to some.

True.

Just to put things in perspective though, the amount of power it took to run your computer long enough for you to type and send that message could power a digital watch for week.

lt.dan58
10-06-2009, 21:09
well ill keep everyone up to date on how long the battery lasts

nrembis
10-06-2009, 22:15
Expect about 30 full cycles before having to change the battery

Tekdivr
10-06-2009, 22:17
Honestly you don't need to worry about battery drain from the computer staying on this amount of time. As stated above, batteries are cheap, so replace them annually with your reg inspection. Most manufacturer's state that they are good for two years, but why not play it safe. No sense in having one go down during a week long trip and loosing all of your nitrogen loading info.

petronius
10-06-2009, 22:39
If you really want to turn it off, the reset feature (page 44 in the manual) will do it. Of course, it will also erase all the dive data, so make sure you've transferred any info and you don't plan to do any more repetitive dives.

The battery does seem to last a long time; I must have 50-60 dives (usually only 1 or two per activation) on the original battery with my XR-1...

mm2002
10-07-2009, 04:39
Correct about the reset function. After every dive day, I log my dives, then clear the computer (which also powers it off). I just put in a new battery, checked my log book, and the old one lasted 78 dives/16 months.

rayaa3
10-07-2009, 16:37
my veo 100 does this and the battery lasts years...

I will mention this...on my veo 100 not all cr2450 are created equal, the ones at radio shack last me years, the ones at walmart last me months.

I always pack an extra just in case (on trips)

mm2002
10-07-2009, 19:01
my veo 100 does this and the battery lasts years...

I will mention this...on my veo 100 not all cr2450 are created equal, the ones at radio shack last me years, the ones at walmart last me months.

I always pack an extra just in case (on trips)


Seeing the amount of dives you have, and your battery last for "years"?....:smiley2:
How many years? :smiley36:
Seriously, as long as you buy the Sony batteries, they're pretty much the same. Other brands probably last just as long, but I don't know.

rayaa3
10-07-2009, 19:45
I started diving in 2006, my current battery is 2 years strong. Oddly the one that came with it only lasted months...my first replacement lasted weeks before blinking low then I got a replacement from radioshack...that's been in there 2 years.

I don't get to dive much in ok, but I make the most of the mud holes here, and try to make 2 dive trips a year...

CompuDude
10-07-2009, 21:10
There's got to be some kind of button hold combination that turns it off. 24 hours is a long time for that battery to be draining.

Battery to be draining?? Have you ever seen a digital watch? A LCD screen requires virtually no power. It would go for years just lighting up a screen... don't worry about 24 hours.

Larry is right. The battery in your average digital watch lasts 5 years. The 2 days your computer remains on (doing a simple count-down until 48 hours have passed and all Nitrogen has been cleared) is nothing. It's supposed to do that. Whether the display is on or not is irrelevant, an LCD like that uses almost no power to maintain a display, it's the backlight that sucks down juice.

mitsuguy
10-07-2009, 21:34
I'll put it in perspective for everyone a little... the Geo computer, which is similar in function, but smaller than the VEO/XR series of computers, is a wristwatch style computer - it functions as a watch until it gets in the water, when it turns on the dive functions...

lithium battery quality is all over the place, with some lasting twice as long as others, even from the same package at times... that being said, I typically get 200ish dives out of one battery... I've gotten as few as 100 and as many as 250 out of a single battery... I do not pre-emptively change them, I do have 8 spares right now, ready to go when needed... when functioning as a wrist watch, as mentioned, there is relatively little battery being used... what sucks up the battery is the pressure and temperature sensors... did you know that any time the battery is in the computer, a small amount is being drained - the button on the front signals an IC to wake up - in the mean time, that IC is always drawing a little power waiting for that signal... it is like a new personal computer versus old - old pc's had a hard wired switch that worked like a light switch, new computers have a switch that signals to an IC that tells it to wake up... the dive computer works like a new pc in that effect...

tajkeh`
03-23-2013, 09:09
Help :(

I just got my XR1, done two dives, then as explained by others ... displayed FLY for the reset of the day, next day, i checked: the battery is damn low, and by end of day 2 -> died

I went to the local store and got 2 replacement batteries (cost here is Duabi around 5 Euros each) ...

Is that normal? i don't think so? might the original battery been half drained or something?

I will try to put one of the new batteries and keep you posted