I bought these for a solar security light, and they failed after only a few months of use, they were fine until the temps went down to freezing, after that they would no longer take a full charge or hold a charge. I was very dissatisfied. I replaced them with scavenged 18650 laptop battery's and all is well.
Verified purchase: Yes | Condition: New
One battery act like it not wanting to hold a charge.
Verified purchase: Yes | Condition: New
good battery, love Power Sonic batteries.
Verified purchase: Yes | Condition: New
Great
Verified purchase: Yes | Condition: New
Have bought one before and it lasted for years
Verified purchase: Yes | Condition: New
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