|
roccodm
super member
Reged: 01/15/08
Posts: 102
|
|
I saw batteries at walgreens for $10.00 for 32 double AA batteries so i thought this was an excellent deal for batteries for my little etx 60 . I placed the first set of six in the battery pack and after about one hour observing i heard a loud pop. i opened the battery case and it one had exploded. two nites latter i put the second set in and once again after one hour another loud pop- two exploded batteries- i was very fortunate that non of the acid leaked down in to the drive board. put duracell in and everything fine after 3 hours last nite of observing- i am only posting this to help anyone else from having a serious problem with the bargin batteries- clear skies to all rocco
|
Kolenka
Pooh-Bah
Reged: 06/01/08
Posts: 1009
Loc: Seattle Area, WA, USA
|
|
Could you tell us what brand? It will give us a better idea of who to avoid. 
--------------------
Orion XX12 / Orion 80ED OTA / AT66ED
Nagler 7T6, 9T6, 13T6, 17T4, 26T5
Canon XS, TIS DMK 31AF03, AstroTrac TT320X
Northwest Astro Photoblog
|
Arctic_Eddie
professor emeritus
Reged: 12/30/07
Posts: 597
Loc: St. Petersburg, FL
|
|
Were they alkaline or carbon-zinc? The later doesn't like high current and will get hot.
--------------------
The shortest distance between one point is an infinitely small circle.
73's de KF4JU
|
cnstarz
professor emeritus
Reged: 12/22/07
Posts: 549
Loc: Kentucky, USA
|
|
The AC power supply is highly advised for the etx-60, I do keep the battery pack filled with fresh Duracells though.
--------------------
Matt
Apogee 50mm BB scope
ETX-60 BB
Meade 70-az
5" DIY Newt (wip)
C6-N on CG-4 GEM
Gallery
|
roccodm
super member
Reged: 01/15/08
Posts: 102
|
|
The batteries were called ultra alkaline supercell sold under walgreens name- came in pack of thirty two- i agree thepower supply is the way to go but i take this little scope to a relatively dark site off of a bike path so i rely quite a bit on the battery power- clear skies to all rocco
|
Arctic_Eddie
professor emeritus
Reged: 12/30/07
Posts: 597
Loc: St. Petersburg, FL
|
|
We've used many alkaline batteries under the Walgreen name and not had any problems. However, our use was not in telescopes but in lower current applications. I would try to return them for refund or replacement as I believe they are defective based on your description of the failure mode.
--------------------
The shortest distance between one point is an infinitely small circle.
73's de KF4JU
|
Joe Lalumia
Post Laureate
Reged: 01/24/07
Posts: 3600
Loc: Rockwall, Texas, USA
|
|
What I think happened --- also happened to me once--- you put the battery in backwards-- I had this happen once with Eveready Alkaline batteries..... it exploded. I now use an external power source.
--------------------
LX90 8" LNT, SV Nighthawk & TelePOD, SV 80/9D & M4 mount, ETX 90, Orion XT10i, 20x80 binoculars, SV-BV3s-- www.texasastro.org
"Great minds discuss ideas;Average minds discuss events;Small minds discuss people." Unknown
Edited by Joe Lalumia (06/07/08 04:37 PM)
|
|
3 registered and 5 anonymous users are browsing this forum.
Moderator: Shadowalker, oldsalt
Print Thread
|
Forum Permissions
You cannot start new topics
You cannot reply to topics
HTML is disabled
UBBCode is enabled
|
Thread views: 655
|
|
|
|
|
|
|
Previous
Index
Next
Threaded
Edit
Reply
Quote
