Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: How to Measure Specific Gravity of Battery
Share
Notification Show More
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Electrical Theory > How to Measure Specific Gravity of Battery

How to Measure Specific Gravity of Battery

Last updated: July 27, 2018 1:29 pm
Editorial Staff
Electrical Theory
No Comments
Share
2 Min Read
SHARE

Specific gravity is defined as the ratio comparing the weight of any liquid to the weight of an equal volume of water. The specific gravity of pure water is 1.000. Lead-acid batteries use an electrolyte which contains sulfuric acid. Pure sulfuric acid has a specific gravity of 1.835, since it weighs 1.835 times as much as pure water per unit volume.

Since the electrolyte of a lead-acid battery consists of a mixture of water and sulfuric acid, the specific gravity of the electrolyte will fall between 1.000 and 1.835. Normally, the electrolyte for a battery is mixed such that the specific gravity is less than 1.350.

Specific gravity is measured with a hydrometer.

How to Measure Specific Gravity of Battery

Figure 1 : Simple Hydrometer

A simple hydrometer consists of a glass float inside a glass tube, as shown in Figure 1.

The hydrometer float is weighted at one end and sealed at both ends. A scale calibrated in specific gravity is positioned lengthwise along the body of the float. The float is placed inside the glass tube, and the fluid to be tested is drawn into the tube.

As the fluid is drawn into the tube, the hydrometer float will sink to a certain level in the fluid. The extent to which the hydrometer float protrudes above the level of the fluid depends on the specific gravity of the fluid. The reading on the float scale at the surface of the fluid is the specific gravity of the fluid.

Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

AC Generator Nameplate Ratings
Parallel Short Circuit Faults
Generator Action in a Motor
Series and Parallel Inductors
4-Wire, Three-Phase Delta Wiring System
DC Machines Construction
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
208kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

DC Generator
Voltmeters
Electrical Symbols
Impedance in RL Circuits
AC Generator Voltage Regulators
High Voltage Circuit Breaker Principle
Motor Controllers
AC Generator Parts

Keep Learning

Power Triangle

Power Triangle

Transformer Tap changer

Transformer Mutual Induction

Using Kirchhoff’s Voltage Law to find Current with one Source

Applying Kirchhoff’s Voltage Law

Calculate Power in Series RC Circuit

Calculate Power in Series RC Circuit

Voltage Divider

Voltage Divider

Left-hand Rule for Current Carrying Conductors

Magnetism

DC Motor Connections

DC Motor Connections

Resistor Y and Delta Network Calculation

Y and Delta Resistor Network Calculations

Learn More

Power Electronics Objective Questions

Advanced Three Phase Converter Objective Questions

VHDL Projects for Engineering Students

100 VHDL Projects for Engineering Students

Robotic Instrumentation Objective Questions

Robotic Instrumentation Objective Questions

Exclusive Valve Sequencing

Exclusive Control Valve Sequence

Cable Schedule

What is Cable Schedule and Junction Box Schedule?

Configure the Instruments in Flow Control Loop

Configure the Instruments in Flow Control Loop

Siemens PLC

Five Types of PLC Programming languages

Closed-Tank-DP-Type-Level-Measurement-with-Dry-leg-and-transmitter-installed-below-tapping-point

Level Measurement with Dry leg and Installed Below Tapping Point

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?