BATTRY SOLAR LIPO 18500

Good Batteries and these were a fair price. They hold a charge very well for being 350mah. I am using a charger that will not over charge the batteries and it works well. These feel pretty weighty which is a good indicator of the cell being decent, weighs a few grams more (6 grams to be exact) then the Trustfire's I replaced with these. These also hold a charge and perform for a couple hours more the the Trustfire's.

I’ve had the same streamlight stylus pro for about 2 years and it’s been through hell. Thought it was invincible until I put these batteries in it. Worked great for about 5 seconds then it started smoking and now it’s dead. I’m left feeling as if I lost a best friend. Don’t make my same mistake!

I really like these batteries, they last and fit my German flashlight perfectly.

POWERFUL little batteries, just be careful .where you use them, I recommend only using the in a device that only uses one battery, two might be too much.They have their place and last long on a charge. I still am happy I bought them.

I have a huge collection of highend flashlights both modified and stock and I use these batteries in several of my 10440 pocket rockets and all 6 of them get used regularly.I have also been using the Efest 10440's since they came out and consider them being the best, but these can't be beat for the price and their performance is nearly as good as the Efest. Always make sure your flashlight can handle the higher voltage of these batteries because most AAA lights do not and these batteries will quickly destroy it. The UktraTac K18 found here on Amazon is a great little light that just loves these batteries and the amount of light it produces with these batteries is amazing for a stock flashlight.

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I got one battery that was completely useless..

I use these batteries in small electronics projects that require long run times. Please be aware that these batteries are 3.7 volts, so just because they fit in a AAA slot, doesn't mean they go there.With the right resistor, you can build a rechargable LED circuit using 4 standard LEDs that will run for approximately 11 hours before needing a charge with a single cell.I do not have any cons for this battery. It is pretty standard. You charge it and then use it appropriately.