LPF Donation via Stripe | LPF Donation - Other Methods
Links below open in new window
ArcticMyst Security by Avery
Energizer E2 Lithium AAA Life.
- Thread starter LarryQ
- Start date
- Joined
- Aug 17, 2007
- Messages
- 28
- Points
- 0
17
- Joined
- Oct 24, 2006
- Messages
- 2,032
- Points
- 0
verybigkitty said:
A just answer ;D
Unfortunately you can't put a set time because its not like the laser works for x minutes and then stops. The output slowly drops off until it starts flickering, or mode changing, or something else to let you know you're out of juice.
Here is energizer's spec sheet on the AAA E^2 liths: http://data.energizer.com/PDFs/l92.pdf
With an x-105 the pump diode is ~500mW, so lets just assume power input is somewhere ~1.5-2W between inefficiency in the diode and driver. That means your current draw on 2xAAAs will be ~500-667mA (this figure is pretty accurate in practice actually). You can use those numbers with the spec sheet to get an idea of how long you have before the laser can't lase anymore.
- Joined
- Mar 8, 2007
- Messages
- 42
- Points
- 0
Yeah addictive - you want a Hercules now don't you?
Good figuring by pseudo as usual. Could he figure out similar for 3X11AH 'D' in a Hercules?
Good figuring by pseudo as usual. Could he figure out similar for 3X11AH 'D' in a Hercules?
Now...wait a Min....1 hour can't be right.....
Am I reading that chart correctly?????
Could someone double check me on that???
I think we are missing one piece of the puzzle to find the answer....
The laser will stop Lasing at a value greater than ZERO.....so while there is still power remaining in the cells...for all essential purposes it's dead.
Larry
Am I reading that chart correctly?????
Could someone double check me on that???
I think we are missing one piece of the puzzle to find the answer....
The laser will stop Lasing at a value greater than ZERO.....so while there is still power remaining in the cells...for all essential purposes it's dead.
Larry
it would depend on the voltage threshold of the diode, BUT lithiums hold their voltage right up until they go flat for the most part. so if you have 2 AAA lithiums with a combined capacity of 2400mah and you draw say 700 ma/h on a load. assuming you get 85% you should get ~3.5 hours
the threhold though is considerably lower though so you should actually get closer to 95% before they go low enough to start suffering a voltage drop serious enough to stop lasing.
the threhold though is considerably lower though so you should actually get closer to 95% before they go low enough to start suffering a voltage drop serious enough to stop lasing.
WOW...
I thought I was being overly optimistic with 1 hour!!!!
If you can get 3 hours out of a set of Lithiums, why do people go for the rechargeables???
3 hours on a single pair of lithiums, (and My nova LOVES them)...seems way too good to even bother with a charger.
Regular alkalines, I can see the need for rechargeables...but with the availability of Lithiums.....
Interesting.....What am I missing???
Larry
I thought I was being overly optimistic with 1 hour!!!!
If you can get 3 hours out of a set of Lithiums, why do people go for the rechargeables???
3 hours on a single pair of lithiums, (and My nova LOVES them)...seems way too good to even bother with a charger.
Regular alkalines, I can see the need for rechargeables...but with the availability of Lithiums.....
Interesting.....What am I missing???
Larry
- Joined
- Sep 12, 2007
- Messages
- 9,399
- Points
- 113
They're relatively expensive - Especially for an addict.
Gazoo
0
- Joined
- Jun 9, 2007
- Messages
- 3,206
- Points
- 38
Larry,
The capacity of an energizer primary lithium battery is 1250 mah's. Not 2700 mah's! Look at the data sheets.
http://data.energizer.com/SearchResult.aspx
Ashton,
The voltage of a single lithium ion battery fresh off the charger is 4.2 volts. From there the voltage will drop quickly to appx. 3.7 volts, and then slowly drop from there.
The capacity of an energizer primary lithium battery is 1250 mah's. Not 2700 mah's! Look at the data sheets.
http://data.energizer.com/SearchResult.aspx
Ashton,
The voltage of a single lithium ion battery fresh off the charger is 4.2 volts. From there the voltage will drop quickly to appx. 3.7 volts, and then slowly drop from there.
Gazoo
0
- Joined
- Jun 9, 2007
- Messages
- 3,206
- Points
- 38
Ashton said:
Anyone doing this with any type of non-rechargable batteries is waiting for a terrible accident to happen, especially with lithiums...don't do it!
Get some decent AAA NIMH batteries. I am using eneloops in my X105 and they are holding up very well. I just got back from the store and bought a pack of E2 AAA lithiums to try in it. I will be reporting back a little later.
