{"id":15561,"date":"2017-05-14T10:41:56","date_gmt":"2017-05-14T14:41:56","guid":{"rendered":"http:\/\/www.tasteyourjuice.com\/wordpress\/?p=15561"},"modified":"2017-12-18T23:45:57","modified_gmt":"2017-12-19T04:45:57","slug":"a-battery-mooch-post-nitecore-40a-2600mah-18650-bench-test-results-ridiculous-40a-rating-only-20a","status":"publish","type":"post","link":"https:\/\/www.tasteyourjuice.com\/wordpress\/archives\/15561","title":{"rendered":"A BATTERY MOOCH POST: Nitecore 40A 2600mAh 18650 Bench Test Results…ridiculous 40A rating, only 20A"},"content":{"rendered":"

This Nitecore is a 20A rewrapped cell with a useless and possibly dangerous “pulse” rating (see the Comments section).<\/p>\n

While this cell has an exaggerated 25A continuous rating in micro print on the wrap it also has a useless 40A “max pulse discharge” rating on the wrap too. It also features “40A” in a huge font which many people will use as the cell’s rating when shopping or when a vendor displays it on their web site. For these reasons I feel the large “40A” rating, or any “pulse” or “max” rating, is misleading and shouldn’t be used.<\/p>\n

If we vape with this battery above about 30A or so it can heat up to ridiculously high temperatures if there is a regulated mod malfunction or accidental button press in a mechanical mod. This could possibly force the battery to vent and leak\/spray toxic organic solvents from the battery. I think vaper safety should be a priority when setting “pulse” ratings.<\/p>\n

The wrap is not the standard heat shrink plastic. It is self-adhesive and appears to be similar to Mylar. I do not know how durable it is compared to the wraps being used now by other companies.<\/p>\n

This cell says “IMR18650” on the wrap but it does not use IMR chemistry. It uses one of the INR chemistries.<\/p>\n

I was especially disappointed to see this cell’s continuous current rating set at 25A by Nitecore. It is clearly set by Sony at 20A (see the VTC5 datasheet image below).<\/p>\n

I am rating this Nitecore at 20A and 2600mAh. The ones I tested were rewrapped VTC5’s. Their performance was essentially identical to the VTC5’s I have here.<\/p>\n

The two cells that were tested were purchased by me from IMRBatteries.<\/p>\n

Test results, discharge graph, photos: https:\/\/www.e-cigarette-forum.com\/forum\/threads\/nitecore-40a-2600mah-18650-bench-test-results-ridiculous-40a-rating-only-20a.803307\/<\/a><\/p>\n

All my test results to date: https:\/\/www.e-cigarette-forum.com\/forum\/blog-entry\/list-of-battery-tests.7436\/<\/a><\/p>\n

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