Bests & Worsts Reviews from Amazon

so i purchase my head light in May and has not reviewed the item until now. purchase was made for a bicycle headlight yet this thing came in with anything you might think you'll need to attach it to something (i only wish i could rotate it 90 deg) so the headlight is VERY BRIGHT i would even say AWESOME. now for the things we could cry about to the Bright Eyes Lights, Inc & Always Quality Products company about: first issue is: i have 2 chargers one cuts off at 8.37V (great right) the second one (i just find out yesterday) it continues to charge until 8.7 Volts is reached that is 4.35V per cell NOT 4.2V now anyone knowing a thing of two about batteries knows that LI-ION are very baaaad at being overcharged and yes .15V above 4.2 is overcharging (way overcharging) to the point that your batteries are going to have VERY SHORT lifespans. second issue is: as you see in the pictures the lithium Ion battery cells inside the pack are very light NO NAME 18650 cells my battery pack was advertised at 4400mAh and from may til now i used the baaad charger only handful of times yet those batteries tested Horribly (look at the pictures at the end of discharge cycle) I have to say the pack lasted for 6 months without an issue (never died on me on the way home - about 1hr. ride) i could never go 2 evening on a single charge - meaning i had to charge after every 1hr return from work at midnight. i like the headlight so much that i bought a second one and mounted on the back in strobe mode and did not make it home on a single charge. strange i thought 4.4Ah battery pack did not las 55 minutes with 2 LED's? (one on strobe mode) being a tinkerer i took the battery apart and found the beforehand mentioned no name cells !!!! replaced those with Panasonic NCR18650B's making my pack 8.4V 6800mAh battery with 3 pigtails (as i had 2 headlights and 3rd tail just to charge without disconnecting anything) plugged in both headlights and runed them for 4 HOURS (both light at the brightest setting) i got bored waiting for this thing to die before going to sleep checked the voltage and still had 6.99V that means those cells were still @ 3.5V probably would go another 4 before dying! so Bright Eyes Lights, Inc and/or Always Quality Plus Products -- please WE your LOYAL CUSTOMERS pay top dollar for top of the line equipment your pack was NEVER at 4400mAh and the charger cut-of voltage of 8.7 is a disaster for any LI-ION pack you should HAVE QA dept beating the drums to high heavens if you have to charge us 10 bucks more please do so, but give us top of the line BATTERIES as are your HEADLIGHTS. because going from 1.5 hr on single light to more than 4hr's on charge with 2 headlight on high is one hell of a upgrade i bought my cells @ $6.5. I guarantee you can get a whole lot better deal by purchasing few thousand's of them directly from manufacturer. my rating is still 5 star because i LOVE the product but i think whole lot of people here are going to agree with me - WE DESERVE BETTER ! LIGHT IS EVERYTHING IN THE DARK ! product is GREAT support is GREAT just QA your chargers and PLEASE REDESIGN your battery pack - WE already love you for the product there - MAKE US love you MORE all the pictures are of upgrade process and at the end of discharge cycle of original NO NAME battery cells -- the one with 3 plugs shows the rebuild pack as well the batteries i used to rebuild are Panasonic NCR18650B Li-Ion cells unprotected rated at 3400Mah yes that's 3.4Ah and i own more than 20 of them none have failed and some of oldest are more than five YO and still test above 3000Mah (i have never overcharged any of them though) the link is here amazon should not have an issue with it as its their item! http://www.amazon.com/NCR18650B-3400mAh-Rechargeable-Batteries-Panasonic/dp/B00GS48XRE/ref=sr_1_2?ie=UTF8&qid=1448604054&sr=8-2&keywords=18650+panasonic hope you can use my observations i LOVED my Headlights before i still LOVE them just wished more attention was paid and company respected us more as WE KEEP THEM IN BUSINESS.