View Full Version : 18650 battery expert question
02-14-2011, 12:46 PM
So i own a hellfighter x8 and some vintage surefires. I was reading up on being able to replace my cr123's With an 18650 rechargable. I ended up buying a $10, two 18650 3000mAh with charger. Got my batteries today and they are like 1mm too wide to fit in my lights.
I am guessing they are cheap out of spec batteries correct?
What brand should i use, and at what mAh? Should i use a different charger too?
Its not even worth trying to return this battery charger set i ordered haha
02-14-2011, 12:55 PM
The batteries are probably fine, you just bought the wrong size. ;) (I bet you need 17670's) You're also going to have trouble with the voltage.
02-14-2011, 1:01 PM
Do they change in size when the mAh is higher. I read people were using 2400mAh. So i figured 3000 mo powa!
Now with a little more reading about crappy baterries i noticed that mo powa doesnt mean reliability haha.
02-14-2011, 1:03 PM
And i dont know much about them so i kind of just leaped right into it.
Im use to Simple maglights. I was given a few surefires and this hellfighter. Im a tinkering man soo :)
02-14-2011, 2:20 PM
i run these 18650 batteries in my cheap solarforce LP2 body (similar to SF 6P) with M61 malkoff drop-in...
my friend is a flashlight nerd and he told me these are good batteries
mine work, but the batteries are a little to skinny so i just put a little bit of electrical tape so they wont rattle...
i took some batteries out of old laptops and those also work ok(also 18650), capacity i think is around 1200-1600mah (not sure) and these are defenetly shorter in lenght then the ones in the link, i just used small magnets to make up the differance.
not sure if i help, i will try to post up pics...also im no expert
02-14-2011, 8:12 PM
this is the bs i bought. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200478630225&ssPageName=STRK:MEWNX:IT
lol i guess i'll try the laptop battery thing since i have one and figure out what to order.
i have this sony 14.8v/4000mAh. so do i just open it up and extract the batteries or am i going to blow up? haha
just tried it. battery is exactly the same size as the one i bought
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