Laser Blue 50mw
Are ALL 18650 batteries rechargeable?
I’ve recently got myself a very nice 50mw green laser – however it’s been starting to dim and flicker quite a bit. I measured the battery (18650) it came with, which is meant to be 3.7V, and it is in fact 2.9V! So basically, I’m hoping it’s the battery that is causing the beam to dim – but I need to know if the battery I have is rechargeable.
It’s in a plain blue plastic casing, and says “Tian Lin 18650 2800mAh 3.7V” – any experience with these batteries – or 2 CR123 batteries together would be very much appreciated!
Thanks.
No, not all of them are. I have some that are and some that aren’t. Neither of them say so on the label (I tell them apart by color), so it’s possible yours are rechargeable but I doubt that they would come with the laser.
If you want to buy some rechargeable ones and a charger, these are the ones I have (from that site, too):
http://www.dealextreme.com/details.dx/sku.19770
http://www.dealextreme.com/details.dx/sku.6105
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