General

Specific Gravity Temperature Correction
When taking specific gravity measurements, it is important to correct for temperature. See the table below: The above table shows the actual hydrom...
Wed, 20 Sep, 2023 at 10:14 AM
Activating Dry Charged Batteries Instructions
Inspect the cell for damage, Read Warning Label On Cell Before Proceeding. Remove vent caps, fill each cell above the top of the splash guard (protection ...
Wed, 13 Sep, 2023 at 10:42 AM
Hydrogen Off-Gas & Ventilation
Hydrogen Liberation   As the battery cell voltage reaches 2.35 VPC the majority of gassing begins. At this point approximately half the electrical energ...
Sun, 9 Jul, 2017 at 11:11 AM
Calculating Hydrogen Concentration For Proper Ventilation
The following steps and examples are provided for guideline and reference purposes only.  Provincial, State or Federal regulations and codes may vary.  We s...
Sun, 9 Jul, 2017 at 11:27 AM
Recommended Torque Settings - Flooded, AGM, GEL
Refer to the chart below for the recommended torque setting for the battery terminal (see battery specifications). To prevent terminal damage, contact Rolls...
Fri, 8 Sep, 2023 at 5:41 PM
Low Voltage Disconnect (LVD)
Many systems offer the ability to program Low Voltage Disconnect (LVD), triggering an alternate power source (often a generator) to kick in, preventing over...
Wed, 6 Jun, 2018 at 11:04 AM
Battery Orientation
Flooded lead-acid batteries must be kept in an upright position at all times as electrolyte may spill if tilted more than 20 degrees.  Rolls VRLA AGM batte...
Wed, 8 Jul, 2020 at 8:04 PM
Dry Battery Activation: How much electrolyte is required?
  When activating a dry battery, only electrolyte will be added.  Once the battery has been activated, only distilled water will be added to top-up the cel...
Tue, 5 Mar, 2019 at 3:14 PM
Temperature Sensor
Temperature Sensor   For charge accuracy and safety, many systems use a sensor mounted to the battery to measure cell temperature and adjust charge volt...
Tue, 6 Aug, 2019 at 10:23 AM
BCI Sizing, Battery & Modular Cell Replacement
MATCHING BRAND & MODEL Battery manufacturers offer a wide range of models.  In addition to various voltage and capacity offerings, popular battery m...
Tue, 23 Mar, 2021 at 2:13 PM