I just bought two Trustfire 18650 3000mAh batteries to go with two other Trustfires 18650 3000mAh that I already had.
Wanted 4 matching batteries for use in my Sky Ray Kings (& Kungs) flashlight.
Anyway the two newer batteries (2 on left side) have slightly different coloring on the wrapper, from the two I’ve had for awhile (on the right side).
As per in the picture, all four batteries are going thru a Charge Test (500mAh) on my BT-C3400.
But it’s going to take awhile (several hours) to see if they match each other.
Just wonder if anyone has any knowledge if the batteries might have a difference, that goes beyond the wrapper coloring difference?
The problem with cheap batteries (including TrustFire) that you never know what’s under the wrapping, and even batteries from same batch may have large variance in performance. Just get some brand name batteries like Panasonic/Samsung/etc. The minor price difference really not worth the poor performance and possible safety issues.
I’m not so rich, to buy cheap.
The 16 Samsungs 18650 26F 2600mAh I ordered 33 days ago, from Banggood (China), finally arrived today at the docks in San Francisco (US Customs).
I had assumed that the Samsung shipment was lost, so last week I had ordered the Ultrafires and Trustfires, from with in the USA.
In the past few months, I’ve also bought 28 Samsung 26A laptop pulls, I’ve also bought 10 Keeppowers from the local Illumn.
just curious, why did you think the Samsung shipment was lost at 33 days?
Normally my orders from China take 7-14 days, so when it got to around 26 days, I figured the shipment would never arrive.
I do not know the west coast dock workers had gone on a “slow down”, not longer after my batteries shipped out from China.
So I guess the batteries sat off the west coast for a few weeks.
I test all the batteries I get on my Opus BT-C3400, so far the Trustfire perform as rated, except for that last two, I went for a better price from a new seller, they are about 85% as good as all the previous ones I had bought (twelve 18650 & four 26650 & four 14500).
nah, it wasn’t just the dock workers. Batteries are sent surface mail on a ship and may sit at the dock for weeks before finally being picked up on a ship. It typically takes 30-60 days for surface mail to arrive from China. NOBODY I know of in the US gets surface mail in 7-14 days. My first and only and last China battery order from Fasttech took 90 days from order to delivery.
Your batteries got put in a container here. There is a flashlight or two in one of those containers 
Then your batteries had to wait its turn to get on a ship like this that was destined to the USA
ROFLOL!
you will be lucky to find 2 of the same in a lot of 1000!
what you get depends entirely on the feedstock at the counterfeiting/rewrapping house that day.mostly going to be used cells from scrap laptop and tool packs.
scrap laptop packs from areas where blf members reside are going to be especially poor.we done sorted out all the good ones.
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just curious, why did you think the Samsung shipment was lost at 33 days?
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Normally my orders from China take 7-14 days, so when it got to around 26 days, I figured the shipment would never arrive.
I do not know the west coast dock workers had gone on a “slow down”, not longer after my batteries shipped out from China.
So I guess the batteries sat off the west coast for a few weeks.
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Just found out this morning my 16 Samsung 18650 2600mAh are on the USPS delivery truck heading for my street, so it took 37 days from being order until delivery.
Now i need to figure out who is my enemy and give them my no longer needed Ultrafires.