Head lamp battery hack: from AAA to Li-ion rechargeable battery

[@guymaninu]

I have so many headlamps… I’m going to try this. Thanks

[@keithosterkamp6207]

Very nice mod and I definitely appreciate the use of the magnets instead of trying to fit some sort of spring and plate for the contacts.

[@billykulim5202]

rather then using cylinder size battery should use pouch battery like a cellphone one, you can fit bigger capacity to and its more light weight

[@JohnClulow]

Another great DIY mod video! Thank you! I especially like your use of the nickel strips/magnets to connect the Li ion cells! Very creative!

[@natr0n]

This is one of the best mods I have ever seen.

[@winniepeg2020]

Why not just buy a rechargeable one 😂

[@Polly_Ticks]

@@winniepeg2020 Yeah great point there -- why ever do a mod or DIY? Right here on this DIY channel derp

[@Brandon-sy7vj]

@@winniepeg2020 its a fun way to learn the way things work and you learn to upgrade things in general, it’s nice. The fact that you save money helps all this out.

[@dporrasxtremeLS3]

Very Nice! I always like modifying everything! Performance makes our lives so much more involving! Thank you for this video!

[@daveedheard742]

I used the old used disposable e-cig battery with the USB charger They fit perfectly

[@dominiclavu193]

Love your projects! Keep on keepin' on!

[@pascal...enjoysparadigmshi6519]

Awesome as always. 👍

[@jlrockafella]

😂keep the jokes coming brotha

[@ahmedtwahir]

Love the battery hack and the magnetic holder is just genius (or science 😁)...instead of sleepless nights, another idea would be to 3d print your enclosures (and sell them too if you want💰).

[@gonzalez7805]

Awesome... Show this with the light switch light from harbor freight please..

[@offgrid2010]

I've done several of these myself, and like you, opted for external mounting! But I found that recharging them inside the unit like a phone doesn't work bc phones have circuitry to handle the charge properly. Also for a crank type LED lantern the li-ion is brighter and stays charged longer. I don't think it charged faster bc the li-ions have more capacity.

[@Thelango99]

You can also use NiMH batteries as they are available in AAA size. They won't run for quite as long, but does not require any modifications to be done on the headlamp.

[@matebarta5403]

Yes, but they also provide a lower voltage. 3x~1,2V=3,6 so the lamp won't be as bright as with alkaline batteries.

[@Thelango99]

@ Only for a certain period though. Alkalines are only 1,5VDC when full and drops linearly as it gets drained. At 50% charge, Alkalines are at about 1,2VDC.

[@keenowl1410]

👍

[@jimthesoundman8641]

You probably ought to add a diode to prevent accidentally reversing the battery and damaging the electronics.

[@freecard4410]

It's led light , so it's a diode by itself, also adding a diode will result in a 0.7v drop so the lithium battery will go down from 4.2v to 3.5v

[@smegheadGOAT]

great job

[@adama1294]

Have the external case go to the back of your head. It will balance out the weight, and you could put an even bigger battery.

[@vuaeco]

Great idea!

[@shelley131]

Great great video!! Is there a battery charger that you would recommend?

[@vuaeco]

I use the Opus BT-C3100 for these because I can adjust the charging current down to 200mA.

[@ff-mu6cc]

cool!

[@CameraRay]

Good job. Night try it out myself.

[@charlieszablewski830]

Awsome well explained to

[@davesigz]

Thanks

[@DeePaignall]

And the Lord said 'Let there be light' And there was light.... .... ... .... You could see for f**king miles:)

[@vuaeco]

Amen!

[@winniepeg2020]

Why not just buy a rechargeable one

[@vuaeco]

Because it is now a rechargeable one