LED Bicycle Light DIY (Do It Yourself)

Here is a homemade LED bicycle light that is also high-performance.  It is a modified mini maglite led 2-cell AA that has twice the brightness of the normal maglite, and a rechargeable battery that maintains full power for hours.  The battery is no longer inside the maglite.  The battery is now in the bicycle's water bottle and a LED light engine is inside the maglite in place of the batteries.  The weather-proofing, optics, and thermal design are similar to the original maglite, and it uses the 1A (Amp) Lumileds Luxeon III LED from the stock maglite.

Here is a picture of the homemade LED bicycle light on ManJoseman's bicycle:

Here is an up-close of the flashlite.  The mount consists of a 1" Stem Cap Light Mount from Paul Component Engineering and a DKG MM1B Mini-Mount from DKG CNC Machine Shop.

  Here is a close up of the battery pack that is in the water bottle:

Here is the battery pack removed from inside the water bottle.  The battery pack is 12V and consists of ten Sanyo ENELOOP Ni-MH cells.  The battery pack has one connector for the light and another for the charger.  There is an NTC glued to the battery pack.  The NTC tells the charger the battery pack temperature so the charger can give the battery pack the most charge and the most amount of re-charges.     

 

This is the light shown with the light engine that is normally inside the light.  The light engine delivers 1A DC current to the LED, and shuts off automatically when the battery pack starts to run low on power, to protect the batteries.  The light engine also protects itself by sensing its temperature and it will reduce its light output if it gets too hot.  The case of the light helps keep the light engine as cool as possible.  The case of the light is custom laser-engraved.

Here is the charger for the battery pack.  It knows when to stop charging because it senses the battery pack temperature.  It also automatically stops charging based on the battery pack voltage or the length of charge time.  The charger is connected to another power supply that is connects to a home's AC outlet.

 

Comments

[Bike Led Lights]

yeah, the case of the light helps keep the light engine as cool as possible.

[Bike Led Lights]

it is helpfull.but i want to ask,when you thirst,what you can drink?

[gadgettown]

What a amazing thing! This is vary informative and good post. But i think we also can fix the solar led flashlight as a bike lights on the handlebar stem.