13.7 V SLA Battery Regulator

  • 601-00526: 13.7 V SLA Battery Regulator
  • 601-00526: 13.7 V SLA Battery Regulator Alternate View
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Product ID 601-00526


This specialized regulator is designed to charge Sealed Lead-Acid (SLA) batteries. Due to its low reverse leakage it is ideal to pair up with a solar panel such as our #750-00032 for solar-powered projects. The PB137 charges the SLA at 13.7 V with a 2 V dropout voltage, which means it needs about 15.7 V at its input terminal and can provide over 1 A of current with a sufficient heat sink.

By pairing the PB137 up with a solar panel your project can be powered by the sun during the day while the SLA battery is charged. Once the sun goes down or there is insufficient light to charge the battery your project is powered from the SLA battery.

Key Features:

  • Reverse leakage current < 10 uA makes this regulator a good choice for solar powered projects using an SLA battery
  • TO-220 package for easy mounting

Application Ideas:

  • Simple SLA Battery Charger
  • Solar-Powered SLA Battery Charger
  • Solar-Powered Datalogger

Note: This regulator is designed to charge a 12 V Sealed Lead-Acid battery so one is required to use this product.


  • Typical dropout voltage: 2 V
  • Reverse leakage: < 10 uA
  • Voltage requirements: >15.7 V Typical (40V Max)
  • Current output: >1 A (with proper heat sink)
  • Package: TO-220
  • Operating temperature range: 32 to +302 °F (0  to +150 °C)

Downloads & Documentation

Download Details More Info
13.7 V SLA Battery Battery Regulator PB137 Datasheet - 652.85 KB | updated: 16 Sep 2013 - 2:28 pm