Dipper BD-01 now at Simon’s store, 59.27 USD. No affiliation~
http://www.aliexpress.com/store/product/Dipper-BD01-flashlight-CREE-XML2-U2-LED-18650-26650-flashlight-long-beam/330416_1859068110.html
Where can you get the spare adapter bit thingy?
From Simon, of course.
Maybe I was a bit too early when ordering a BD03 at BG instead of waiting for the thread opener to get it in stock at AliExpress with better quality maybe, but I needed it urgently as birthday gift.
Some thoughts about the BD03 from BG:
They sent wrong charger: US instead of EU.
The good: the internal charger is not overloading, it stops at appr. 4,17Volt so it’s save for non-flashaholics.
The bad: the internal charger stops at only 4,17Volt. Flashaholics won’t like.
You can use your mobile phone charger, the light isn’t taking more then 480mA.
Also bad for flashies: Spill and spot are not homogenous, several artefacts and hard corona around. Seems the LED is bit too deep and/or the bezel is interfering.
The whole body incl battery compartment becomes very hot when using on high (head gets >45°C). On one side that’s ok as the heat comes out, but hot battery is not needed.
The battery compartment fits well to unprotected and bigger protected cells like KeepPower or Enerpower.
Take care to install the battery correctly! The negative end towards the head, the positive towards the switch at the end.
The battery can’t be charged in its compartment outside the flashlights body, cause the connection of the negative end is missing then.
Nice tint of LED, not as cold as expected. Near to neutral white.
Absolutely bad: high mode is directly followed by strobe and SOS. That’s a no-go for me and not described in the text at BG. The memory is also remembering strobe/SOS.
The clip (which is not mentioned in the description at all) is made of hard wire and is very flimsy and scratching the body when wobbling up and down.
Very nice charging connector! It fits close and stable. Take care when removing it, do not lift at the USB micro, and touch it properly. It doesn’t seem to be constructed for hands like Godzilla.
It won’t get loose if connected once. It will also keep connection when shocked or vibrating on bad road or similar.
For whom to buy?
- for those who need a lightweight EDC with 18650 and internal charging
- for those who don’t have a clue about Li-Ion charging
- for those who need a alltime-ready flashlight for charging in the car or similar or a lightweight back up.
Buying again?
It’s not the quality I expected but - Yes! It will be the alltime-ready flashlight in my cars and as back up light when camping or so. It’s worth the little money. You only need to get an 18650 separately and you completed all whats needed.
I need another one, but then I will order at the Convoy Shop at AliExpress. (I am done with BG at all for several reasons, all about sending wrong or faulty stuff).
Thanks for sharing, GnR. Sorry to hear about the beam profile.
Welcome to BLF! :party:
Very cool charging method, somebody was really thinking on this one. Hopefully it’s waterproof.
Will test it bit later. Just right now it’s charging some more 18650 to validate if the first impression about 4,17 Volt charging end is always the same.
It’s a flashaholics worries only. Friends of mine (just users and not stuck with flashlights) had problems to follow my concerns about the beam, they are familiar with oldest AA Mag or 9x 5mm LEDs lights only.
I don’t think one will recognize the artefacts in the woods or onto the gras. But there is clearly an improvement possible.
Thx!
It is. 
I dropped it under water, kept it under the jet of the faucet, pushed the button 25x and checked if anything is inside. But - it’s completey dry at the tailcap and also at the bezel and the heads end.
Don’t know what will happen if you wanna dive 30m with it, but for normal use like in heavy rain or let it drop into smaller pond it’ll be ok.
And here is what I meant about the “clip”:
Btw: you can install the battery tube in any direction you like. The light will still work. Maybe interesting for someone who wants to use the clip with the lights head up.
EDIT: I tested some well known batteries like Samsung, Sanyo, Panasonic, protected, unprotected, Eden, Enerpower, KeepPower.
I discharged them below 3,9Volt and charged them in the light itself. They all ended up at 4,17-4,18 Volt. So, it seems to be save for everyone.
Wow, thanks for testing that GnR. I’m going to keep a close eye on these, see if any issues pop up before I dive in.
is the driver separate from the charge circuit? because I can’t stand SOS modes.
It is:
Very easy to access. Use the gaps in the thread with a small screwdriver or similar. To bring the driver back in place just press it in.
EDIT: I missed to measure but it should be 19mm. The socket where the driver is pressed in is 19mm, the inner diameter of the that is 17mm.
I don’t want to suggest much more then the given 4*7135 as the light already gets very hot at high mode.
The wires are very thin. Guess it make sense to replace them too as there is enough space at the LEDs side too.
Sorry for the bad pic quality.
another EDIT [sorry]…
Seems to be an atmel1350 attiny 13a (hard to read), so maybe its worth to try to shorten like shown here: http://intl-outdoor.com/index.php?main_page=popup_image_additional&pID=254&pic=3&products_image_large_additional=images/large/ak1a_04_LRG.jpg&zenid=888a25437d6ff694e4be99b34b0ae249
Want to try this tomorrow if there is any time left.
Meanwhile I bridged by soldering both contacts at the right of the Attiny and it works as described as in the link below:
3 modes only, memory is working, no strobe, no SOS.
Took me less than 2 minutes (incl heating the iron and getting coffee).
http://intl-outdoor.com/index.php?main_page=popup_image_additional&pID=254&pic=3&products_image_large_additional=images/large/ak1a_04_LRG.jpg&zenid=888a25437d6ff694e4be99b34b0ae249
i just thought of something else about the switch charging part, since the switch has both an active positive and negative connection to the internal circuit, is it “diode” protected ? ( meaning if the light is in a pack sack or pocket, and some other metal object such as a set of keys, knife, etc. contacts across the positive input of the button to the negative input of the outer ring around the button, will it cause a short circuit or damage the circuitry ?
Thinking exactly the same since I saw it the very first time - and no - I didn’t tried to find out if my trousers will explode or not. :bigsmile:
Here are some pics from the tailcap. Unfortunately I am not an electronic specialist. But at the left it looks like a diode (for the charging LED at the right?!?) which might help to prevent short circuit from outer influence. But better to ask someone who doesn’t need to guess.
Btw: do not unscrew the plastic battery cage from the tailcap too often. the plastic threads don’t like metal threads that much.
Btw II: all the contacts and springs look bit inefficient about resistance by cheaper quality. But replacing them all or build with higher quality wouldn’t meet the price and target group anymore.
Looks like a tp4057 li-ion charger. 1.69 kΩ (23B) prog resistor = about 500mA charge current (max for this chip).
Thanks for that, you gave me a good laugh.
Found a non-explosive way to check. 
Doesn’t matter if the light is off or on in any mode: max 25mV between both outer contacts of the switch.
Resistance between those parts seems to be endless when off.
Hoping this a valid way to find out and that my 3 DMMs are not lying - should be save in a pocket full of keys and coins.
thats good to know.
“DIpper BD01” $30~
Already recognized the price at BG before, but I ordered just a minute ago a BD01 at Simon on AliExpress for only a few bucks more.
Expecting better service and/or quality.
Now Flashaholics nightmare returns … waiting for the postman.