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Battery Tests and Battery Reviews — 25R

Sony Battery Update: Best Battery Substitutes for Sony 18650s

Posted by Jonathan Caserta on

  Edit:  Sony 18650 batteries are back in stock!  But we'll leave the article below if you'd like to see which substitutes we have.   Replacements for the Sony VTC5 The Sony VTC5 is a 20A 2600mAh cell, that can take some 30A operation for short periods.  It is a pretty good battery but not the overdog that many believe them to be.  Depending on how much power/current your device uses, see below to see which battery we recommend. Best VTC5 competitor, Less than 50W per battery Most customers asking about the Sony VTC5 we actually find would do much...

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Best 18650 battery at 0.2 ohm or 16-21A pulsed loads

Posted by Jonathan Caserta on

One question we get particularly from the e-cig crowd is which battery will show less voltage sag and perform better under pulses at a specific ohm level, for example in a mechanical mod device.  The results are very applicable to someone using a regulated (constant watts) device as well.  So we decided to do a comparison test of the voltage drop under this significant constant resistance load of 0.2 ohms, comparing the Samsung 25R vs Sony VTC4 vs Sony VTC5.

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