How to repair a sealed lead acid battery

Written by susan raphael
  • Share
  • Tweet
  • Share
  • Pin
  • Email
How to repair a sealed lead acid battery
( Images)

A sealed lead acid battery, or SLA, battery refers to a low maintenance, valve controlled battery, that is rechargeable. You may find your SLA batteries no longer take a full charge and run out very quickly after a period of use. Do not throw these batteries away because you can easily repair them yourself. The steps are easy but it will take a lot of waiting time to get the batteries back to form.

Skill level:

Things you need

  • SLA battery charger
  • SLA-powered device

Show MoreHide


  1. 1

    Place the battery into a SLA battery charger and let it charge completely. There should be some sort of indicator on the charger to tell you when the battery is full.

  2. 2

    Remove the battery from the charger and let it rest for 36 hours.

  3. 3

    Replace the battery in the charger and let it fully charge again. Take it out when complete and let it rest for another 36 hours.

  4. 4

    Repeat the charging and resting process two more times.

  5. 5

    Place the battery in a device that accommodates it and let the battery fully discharge.

  6. 6

    Recharge the battery once more until it is fully charged and use as normal.

Tips and warnings

  • Try not to let your SLA batteries run out completely to prolong their lives.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.