Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: What is the best charging Volt amount?
Document: They are charging now but in a brief test they worked fine.
I own eight of these batteries and they perform consistently. The fact that they are an unprotected cell has not been an issue with charging or running. Used to drive zebralight h600 mk II
its the best battery for eVic. hands down. i had the Samsung 18650 2600 mah. but this is way better.
Best 18650 batteries and best price. Lasts me all day. Make sure to charge all the way before first use.
Probably the best 18650 cells iv used, they are not protected so make your device has low voltage cut off. I use them in a fenix tk75 v2 and a fenix tk35 v2.
I have only used these for a few weeks but have not problem with them. Charged up over night and fully usable the next day. Yes they are pricy, in fact very pricy but you get the best. Only the best should do for the flash light that MUST be workable when required.
These batteries are an amazing price and they are the best rechargeable 18650 batteries out there. They really are 3400 mah because I have AW 18650 2000 mah batteries and these Panasonics last almost double as long. I have gotten 4 days on one charge with my E-cig Vamo and it last hours on my Skyray Flashlight. AMAZING! !
This is my second set of Panasonic NCR18650B's. I use them exclusively for powering my Zebralight headlamps. I do foundation work and drain 2-4 per day using my headlamps on high.Pros:1) Reliable2) Durable3) High CapacityCons:1) Don't look as cool as UltraFire....Summary:Don't look anywhere else for current battery technology. These are the best. There may be better if you look up 18650 battery tests, but these are undeniably top notch. Enjoy.
These batteries are great. I had to add a small amount of Solder to the (+) side of them to allow them to charge without a problem and it lets the batteries contact each other better while inside my flashlight. They also hold a charge much longer than other brands.
work great
Answer: I would say try to do .5 if u can. These batteries tend to get hot on the charger