18650 plastic sleeve

Just got some more 18650 is this a problem?

https://imgur.com/a/2PQoy

The only thing I see is those batteries look like laptop pulls. Whenever I tear apart laptop packs they will have little burs like that on the negative sometimes on the positive. Sometimes pliers can remove other times a dremal tool will remove them. Only problem I see is if you bought these as new batteries. I guess they could still be new pack pulls. Have you checked capacity to see if they measure up

i c no problem with “made in japan”, not the 18650 cell

I can see the heat shrink plastic left a little metal open. For safety, you can rewrap battery by a new layer of clear heat shrink plastic from online shops, for examples:

http://www.ebay.com/itm/29-5MM-18-5MM-PVC-Heat-Shrink-Tubing-Wrap-For-Li-ion-18650-18500-Battery-N3-/122030592362?var=421042833571&hash=item1c6997116a:g:ySsAAOSwCEdYT4kR

or:

https://www.aliexpress.com/item/1-Pcs-18650-18500-Battery-18-5MM-29-5MM-PVC-Heat-Shrink-Tubing-Tube-Wrap-5/32705088079.html?spm=2114.01010208.3.3.0qGKkC&ws_ab_test=searchweb0_0,searchweb201602_4_10065_10000073_10068_10501_10000077_10000074_10503_10000032_119_10000030_10000026_10000023_431_10000069_10000068_10060_10062_10056_10055_10000062_10054_10000063_10059_10099_10000020_10000013_10103_10102_10000016_10096_10000056_10000059_10052_10053_10107_10050_10051_10106_10000097_10000094_10000091_10000007_10000050_10084_10000101_10083_10000100_10080_10000047_10000104_10082_10081_10110_10111_10112_10113_10114_10000089_10000086_10000083_10000041_10000044_10000080_10078_10079_10000038_10073_10000035_10070_10122_10123_10121_10126_10124-10503_10501,searchweb201603_10,afswitch_1,ppcSwitch_5,single_sort_3_default&btsid=92dd8be4-9c72-4e12-87dd-b6a79433c516&algo_expid=ae7c0e41-d67a-4b6b-bc3c-631caa3a3537-0&algo_pvid=ae7c0e41-d67a-4b6b-bc3c-631caa3a3537

I mean the short sleeve i know these are out of a laptop battery because i took hem out myself
Is the short sleeve a problem on my other battery’s it comes over the edge a little just looks like these are a bit short

For safety im going to rewrap them i just bought this set looks like a good deal 8,29 for 280pcs pre cut sleeves in 8 colors
http://m.ebay.com/itm/280Pcs-Heat-Shrink-Tube-Tubing-Wrap-Kit-Set-for-Li-ion-18650-18500-Battery-/252692725730?txnId=2002133117015
I plan on ripping apart alot more battery packs rewrapping seems easier than cleaning off the glue residue

The reason I recommended a new layer of clear heat shrink tube is you still can see what kind of original batteries underneath of clear layer. In case you want to group them for some “soup can” flashlights.