If you want a for sure reliable battery, go with the Dynamite Reaction 2 3S 5000mah 50C EC5 for about $75. Now if your looking for a better value, I would look at the Ovonics 3S 5200mah 50C hard pack with EC5 for $35. It’s not going to be as good as the Dynamite pack, but at half the price, you can get two for one. More @Wikipedia
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