Kaidomain's two 32650 Li-Ions + "High efficient" P7 driver for $45???

[SmurfTacular]

I'm very skeptical of their optimistic efficiency rating of 90%-95%. This looks like a great deal. I have had my eye on those 32650 cells for a while, and always wanted to buy them, but I didn't have a driver that accepts over 6 volts. I use DL's x8 7135's for almost all of my Mag mods.

Has anyone had any experience with this combo? I really want to buy this. Another concern of mine are those batteries. They are 90mm long! How am I suppose to charge them; will they fit in a D sized battery holder?

Featurings:
- Current regulated at 3.0A
- Input voltage 5.5V-15V, (no more than 12V would be the best option for protection of LED board according to accurate test)
-Buck Voltage Current Regulated circuit
- Gives 1+ hour current regulated (3.0A) output with four Eneloop AA
- Gives 3+ hours current regulated (3.0A) output with two protected KD 18650(http://www.kaidomain.com/WEBUI/ProductDetail.aspx?TranID=4520 )
-Gives 90%~95% efficient output
- Measures 19mm in diameter, and 8mm in height
- Multi-Mode: Low(5%)/High(100%)/Middle(35%)
- Designed for SSC P7 LED for maximum output 300lumen-900lumens(C bin)
- 1xLED+, 1xLED-
- Prewired, ready to use
- Start shipping since July.5th 2008!

Highlights:
-PWM light-adjusting function (122Hz/244Hz)
-Auto-alarm towards high temperature,then switch to low mode automatically
-Inner system for Li-ion Battery protection (never over discharge/charge)
-Be compatible to CREE/N2---P4---Q5---R2---R4---MC-E；SSC/P4—P7；

Output Voltage:
2.8A(High)~ 1.38A(Middle)~0.25A(Low) --at any voltage level from 5.5V to 13.2V---Current regulated
Caution: No more than 3 D-size Li-ion Batteries (4.0V~12.0V) for protection this LED board

Shipping now<br>
- Fit M*g 2D with spring cut-down or FF M*g golden shorty tailspring<br>
- Built-in over-discharge (2.75V) and over-charge (4.2V) per cell<br>
- Allow a maximum of 16A current load<br>
- 5000mAh true capacity<br>
- Battery itself capable of 3C discharge (will post 0.5C & 3C discharge rate table)<br>
- 0.2C - 0.5C charging current<br>
- Packs are built with cells with low and matched internal resistance<br>
- Packs are tested with fully charge and discharge<br>
- Ship in 3.75V per cell<br>
- Built-in balanced charging circuit<br>
- Charge only with FF 8.4V 1A CC/CV Li-ion Charger, or other RC hobby charger (if you know what you are doing)<br>
- Safe for continuous usage, high quality standard backed by manufacturer directly<br>

 

[PCC]

I didn't buy the combo but I did get the driver (wish I had found the combo, though!). The driver is pretty nice and it works quite well with the C-bin P7 that I had already bought some time ago. As for the claims, I take them with a grain of salt but I really needed a buck driver and the price wasn't bad so I bought it.

 

[blackdragonx1186]

Ive used quite a few of these drivers, with no issues. I have one in my Mag thats been running a C-bin P7 for well over a year. Probably a year and a half. Its been dropped many times, and the only issue was my lens broke. I do need to measure the output of them, but on high it does cause my light to get quite warm, which indicates its being driven at or near spec.