---
title: What is the maximum value of parameter 1138 (battery charge current) ?
description: "This setting depends on the device model you have. We recommend that you consult the technical data sheets available on our [downloads page](https://studer-innotec.com/downloads/) you will find in them the maximum charging current of your studer device."
url: "https://studer-innotec.com/support/faq/vario-mppt-charger-series/battery-management/what-is-the-maximum-value-of-parameter-1138-battery-charge-current/"
updated: "2026-06-25"
category: Battery management
tags:
  - battery
  - vario chargers series
  - variostring chargers
  - variotrack chargers
  - xtender series
  - xtender xth inverter
  - xtender xtm inverter
  - xtender xts inverter
---

# What is the maximum value of parameter 1138 (battery charge current) ?

This setting depends on the device model you have. We recommend that you consult the technical data sheets available on our [downloads page](https://studer-innotec.com/downloads/) you will find in them the maximum charging current of your studer device.