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Rechargeable lithium battery for Familock S3&S3 Max

Rechargeable lithium battery for Familock S3&S3 Max - Main image
$18.5 $36.99 In stock

This rechargeable lithium battery is designed for the eufy Familock S3 and S3 Max smart locks, providing a reliable power source for your lock. It is built to help keep your smart lock running smoothly.

  • High-capacity 1,5000 mAh lithium battery for long-lasting use.
  • Compatible with eufy Familock S3 and S3 Max models.
  • Standard input: 5V=2A for efficient charging.
  • Rechargeable design reduces the need for frequent battery replacements.

Customer Reviews (5.0 / 5 · 2 reviews)

Adam H. ★★★★★

Swapped out the old battery pack and this one slid right into my S3 Max with zero fuss. The lock's been running smooth for two weeks straight now, and I love that I don't have to worry about it dying mid-week anymore. Just wish it came with a second one for backup.

Avery C. ★★★★★

The battery life is a huge upgrade for my S3 Max—that 15000 mAh keeps the lock running for months without a top-up. I was a bit worried about the charging, but it takes a standard 5V adapter and seems to hold the charge really well. Very solid replacement for the original.