Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

Electronics, Lighting, & Gadgets HRM, GPS, MP3, HID. Whether it's got an acronym or not, here's where you'll find discussions on all sorts of tools, toys and gadgets.

Thread Tools Search this Thread
Old 06-09-12, 12:42 AM   #1
Senior Member
Thread Starter
Join Date: Aug 2008
Posts: 2,052
PBSF Turbo Problem, Turns Self Off?

just wondering if anyone else has experienced this or has any ideas...

Recently have been using the PBSF Turbo, very bright, moreso than my Radbot 1000; tho the radbot does have a better on/off switch and more secure battery case...
brighter is paramount of course

just recently its developed a strange behaviour
If turned on and left in the turbo flash mode; after about 6 seconds of flash pattern it turns off. At which point I can press the button again and it witll turn back on in flash mode as if it was a normal userinduced shutoff.(batteries haven't lost contact)
The behaviour is 100% repeatable and appears to be consistently 6 seconds; I am assuming that this is the time cycle of the turbo flash pattern and somehow it is unable to loop itself.
If i press the button before 6seconds have passed, it switches to steady mode and behaves as expected, tested for at least 10mins w no probs on steady.
Ruled out vibration, behaviour is idential sitting on desktop.
so, i guess some portion of the circuitry that controls flash mode is damaged? kinda lame to only be able to use it on steady mode....

What you think?

Just tried it again.... this time the flash cycle lasted far longer than 6 seconds, perhaps 15 before shutoff.
Now appears to be consistently 15secs of flash..
wierd, only diff I can think of is that i spent time typing out this message indoors; while the problems only showed up on the ride home..... temperature related? maybe batteries are low and the delay let them 'rest' and 'recover' a little?

Guess I'll report back after charging batteries....

Last edited by xenologer; 06-09-12 at 12:49 AM.
xenologer is offline   Reply With Quote
Old 06-09-12, 09:28 AM   #2
Senior Member
Join Date: Nov 2008
Location: Bay Area, Calif.
Posts: 5,935
I have a similar problem with a PB Blaze 1W headlight. On colder days if the battery isn't fully charged it'll switch off when used in the flash mode. Works fine in either full or half brightness steady modes and will also work fine in flash mode with fully charged batteries.
prathmann is offline   Reply With Quote
Old 06-09-12, 05:42 PM   #3
Senior Member
maximushq2's Avatar
Join Date: May 2005
Bikes: Specialized Stumpjumper FSR Comp, Specialized Rockhopper Comp, Gt Timberline
Posts: 282
I have read of others having their pb superflash turbo turn off by itself. Your best bet is to contact planetbike and see if they will help you out. I have heard that they have good customer service, but haven't had a need to test it out yet. I have two original pb superflash lights that never had a problem. If you end up having to get a new light I would look into the cygolite hotshot which is a lot brighter than your turbo and similar priced with usb recharging. I now use a hotshot and a superflash combo and it works very well. The hotshot is one of the most intense lights out there when you are driving up behind it and it is cheap too.
maximushq2 is offline   Reply With Quote
Old 06-10-12, 07:12 AM   #4
Vegan on a bicycle
smasha's Avatar
Join Date: Sep 2009
Location: wellington NZ (via NJ & NC)
Posts: 1,016
if it's not fixed with freshly charged batteries, then PB support is totally awesome, they'll sort you out.

not like cygolite support, which kind of sucks.

i haven't dealt with moon or serfas support, but after having problems with my hotshot i'd suggest pairing a PBSF-turbo with a moon shield or a serfas TL-60 "shield". those two lights are the same light just branded differently, the light seems to be comparable to the hotshot, and the support can't be any worse than cygolite.
smasha is offline   Reply With Quote
Old 06-10-12, 02:59 PM   #5
Motorcycle RoadRacer
cehowardGS's Avatar
Join Date: May 2010
Posts: 3,808
This sounds like a battery problem. Either in fresh batteries or the fit of the battery in the case could be off. I have a PBSF Turbo and it works fine. So does, the $4 clones too.
2001 Raleigh R700
1996 Litespeed Classic
1995 Klein Quantum
1989 Cannondale Black Lightning
1988 Centurion Expert Ironman
1989 Centurion Master Ironman
1986 Raleigh Grand Prix(Btr)
1985 Raleigh Prestige
1985 Raleigh Competition
1985 Raleigh Grand Prix #1
1985 Raleigh Grand Prix #2 (project #1)
1985 Raleigh Super Course (project #4)
1979 Raleigh Competition GS-1
19? Raleigh M50 MTB
19? Cannondale F300 MTB

2007 Suzuki GSX R1K
cehowardGS is offline   Reply With Quote
Old 06-10-12, 03:58 PM   #6
Senior Member
Join Date: Jun 2002
Location: GTA, Canada
Posts: 313
I had the same problem with the PBSF Turbo but only after I used it for a few weeks. Luckily I kept the receipt and I was able to get it replaced from the store where I bought it. Mine would turn off after 10 to 15 minutes of riding. Initially I thought it might be because of vibrations on the road so I left it on one time after I came home. It still turned itself off so it was definitely a defect.

I also have a Radbot 1000 which is my main tail light. The PBSF is the back-up. No problems with the Radbot except that the batteries need replacing more often. I have since started using rechargeable AAAs.
cyclocommuter is offline   Reply With Quote
Old 06-17-12, 03:40 AM   #7
Senior Member
Falchoon's Avatar
Join Date: Oct 2002
Location: Oz
Posts: 914
I've had a few PBSF (and clones) and had similar problems but only after going for a ride in the rain. Fine after they dry out. Gave up on them after a while, too unreliable. I now use Cygolite Hotshot, only had it a week, so far so good.
Falchoon is offline   Reply With Quote
Old 06-17-12, 06:10 AM   #8
Vegan on a bicycle
smasha's Avatar
Join Date: Sep 2009
Location: wellington NZ (via NJ & NC)
Posts: 1,016
@Falchoon - my experience with the cygolite is that it's ok until it rains -

the only problems i've had with the PBSF-turbo were teething problems with the 1st batch (turning off on bumps). the 2nd batch is all sorted, and if you're having problems, PB should do what's reasonable to keep you happy, unlike my experience with cygolite.
smasha is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 04:27 PM.