Lead-acid valve-regulated battery standard

This recommended practice provides guidance for the installation and installation design of valve-regulated lead acid (VRLA) batteries.

Guide
Apr 07, 2026

GS Yuasa Battery Europe Ltd. SAFETY DATA SHEET Issue No:

1.1 Product Identifier: Valve Regulated Lead-Acid (VRLA) Industrial Battery Classification: Battery, wet, non-spillable, electric storage (Mixture) Substance classification: UN 2800

Guide
Mar 31, 2026

Understanding The Types Of Lead-Acid Batteries

Each subset of lead-acid batteries classified into two main groups: Flooded and Valve Regulated Lead-Acid (VRLA), which is also known as Sealed Lead-Acid (SLA). EFB batteries are charged similar to standard Flooded batteries, and installed in the vertical position. Enhanced Flooded Battery (EFB) – Thicker plates compared to a conventional

Guide
Dec 08, 2025

1187-2013

Scope: This recommended practice provides recommended design practices and procedures for storage, location, mounting, ventilation, instrumentation, preassembly,

Guide
Dec 13, 2025

1188-2005

This recommended practice is limited to maintenance, test schedules and testing procedures that can be used to optimize the life and performance of valve regulated lead-acid (VRLA) batteries for stationary applications. It also provides guidance to determine when batteries should be replaced. An amendment IEEE Std 1888a is available for this standard.

Guide
Jul 23, 2025

IEC/EN 60896-21

This part of IEC 60896 applies to all stationary lead-acid cells and monobloc batteries of the valve regulated type for float charge applications, (i.e. permanently connected to a load and to a d.c.

Guide
Feb 09, 2026

Valve Regulated Lead-Acid Batteries

The msEndur II is available in two different battery versions. The standard version has the series nomenclature of AT for systems that can float between 2.25 to 2.30 volts per cell average. • IEEE 1189 “Guide for Selection of Valve-Regulated Lead-Acid (VRLA) Batteries for

Guide
Dec 05, 2025

Lead-Acid Battery Standards | Archive

Valve Regulated Lead-Acid. IEEE 1187-2013: Recommended Practice for Installation Design and Installation of Valve-Regulated Lead-Acid Batteries for Stationary Applications; IEEE 1188-2005: Recommended Practice for

Guide
Jan 15, 2026

EUROBAT Brochure on VRLA Stationary Cells and

This guide to IEC/EN standards aims to ‎increase the awareness, understanding and use of ‎valve regulated lead-acid batteries for stationary ‎applications and to provide the ''user'' with ‎guidance in the

Guide
Jan 21, 2026

Lead Acid Battery

This standard covers valve-regulated lead-acid (immobilized electrolyte) batteries, hereinafter referred to as VRLA cells (or modules), used as a reserve energy source that supports dc-powered telecommunications load equipment. Purpose The purpose of

Guide
Jun 13, 2026

IEC/EN 60896-11

This part 11 of the standard is applicable to vented types only. -- The object of this standard is to specify general requirements and the main characteristics, together with corresponding test methods associated with all types and construction modes of lead-acid stationary batteries, excluding valve-regulated types.

Guide
Oct 03, 2025

What is a Valve Regulated Lead Acid Battery? Explore VRLA

A Valve Regulated Lead Acid Battery (VRLA) is a type of lead-acid battery designed to be maintenance-free due to its sealed construction. It utilizes a valve-regulated system to control gas release during charging and discharging, preventing electrolyte loss.

Guide
Nov 06, 2025

FXH-Series

EUROBAT Classification: Standard Commercial 12+ years IEC61056 Yuasa design life @ 20°C 12 years IEC60896-21/22 ALL DATA IS SUBJECT TO CHANGE WITHOUT NOTICE Issue No.: V.2 / Issue Date: March 2014 FXH-Series - Valve Regulated Lead Acid Battery SPECIFICATIONS DIMENSIONS BATTERY TERMINAL TYPE 90° ADAPTOR TERMINAL TYPE OPERATING

Guide
Apr 10, 2026

Lead-Acid Battery Standards | Archive

IEC 60896-11 ed1.0: Stationary Lead-Acid Batteries - Part 11: Vented types - General requirements and methods of tests; Valve Regulated Lead-Acid. IEC 60896-21 ed1.0: Stationary Lead-Acid Batteries - Part 21: Valve regulated

Guide
Jul 02, 2026

1188-2005

This recommended practice is limited to maintenance, test schedules and testing procedures that can be used to optimize the life and performance of valve regulated lead-acid (VRLA) batteries

Guide
Oct 30, 2025

NP-Series

EUROBAT Classification: Standard Commercial 3 to 5 years IEC61056 Yuasa design life @ 20°C up to 5 years ALL DATA IS SUBJECT TO CHANGE WITHOUT NOTICE Issue No.: V.2 / Issue Date: Mar 2011 Valve Regulated Lead Acid Battery-20°C to +60°C ABS (UL.94:HB) ABS (UL94:V0) SPECIFICATIONS DIMENSIONS TERMINAL TYPE OPERATING TEMPERATURE

Guide
Mar 10, 2026

IEC/EN 61056-1

This Part of IEC 61056 specifies the general requirements, functional characteristics and methods of test for all general purpose lead-acid cells and batteries of the valve-regulated type : • for

Guide
Mar 06, 2026

Valve-regulated lead-acid batteries

Valve-regulated lead-acid (VRLA) batteries with gelled electrolyte appeared as a niche market during the 1950s. During the 1970s, when glass-fiber felts became available as a further method to immobilize the electrolyte, the market for VRLA batteries expanded rapidly. The horizontal axis shows the potential scale referred to the standard

Guide
Jun 05, 2026

IEC/EN 60896-21

This part of IEC 60896 applies to all stationary lead-acid cells and monobloc batteries of the valve regulated type for float charge applications, (i.e. permanently connected to a load and to a d.c. power supply), in a static location (i.e. not generally intended to be moved from place to place) and incorporated into stationary equipment or installed in battery rooms for use in telecom

Guide
Apr 06, 2026

SWL-Series

Standard Option Flame retardant option (FR) 13.65 (±1%) V 2.275 (±1%) V/cell SWL-Series - Valve Regulated Lead Acid Battery-20°C to +50°C-15°C to +50°C-20°C to +60°C STORAGE SPECIFICATIONS DIMENSIONS TERMINAL TYPE OPERATING TEMPERATURE RANGE. Title: SWL Series - UK - MJ100311.xls

Guide
May 29, 2026

IEEE 1188

This recommended practice is limited to maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of valve-regulated lead-acid (VRLA) batteries

Guide
Mar 30, 2026

EUROBAT BROCHURE ON VRLA STATIONARY CELLS AND

VALVE REGULATED CELLS AND BATTERIES A valve regulated cell or battery ‎is closed under normal ‎conditions by a non-return ‎‎control valve that allows ‎gas to escape if the ‎internal pressure exceeds a ‎predetermined value.‎ The valve does not allow ‎gas (air) to enter the cell. ‎The

Guide
Feb 12, 2026

VRLA batteries from Shield Batteries

VRLA stands for Valve-Regulated Lead-Acid and is the designation for low-maintenance lead-acid rechargeable batteries. Because of their construction, VRLA batteries do not require regular addition of water to the cells. SEC UK can design bespoke battery pack solutions or standard mono bloc batteries to suit all specifications, whatever the

Guide
Aug 03, 2025

SWL-Series

(for variations from the standard 20°C)-3 mV/cell/°C 14.5 (±3%) V 2.42 (±3%) V/cell Cyclic Charge voltage temperature correction factor SWL-Series - Valve Regulated Lead Acid Battery OPERATING TEMPERATURE RANGE-20°C to +50°C ABS (UL.94:HB) SPECIFICATIONS DIMENSIONS TERMINAL TYPE-15°C to +50°C-20°C to +60°C STORAGE

Guide
Mar 19, 2026

What is Valve Regulated Lead Acid (VRLA) Battery? Technical

A Valve Regulated Lead-Acid Battery (VRLA battery) is a type of lead-acid battery characterized by its sealed, maintenance-free design. (IEC) standard 60896-21, titled “Stationary lead-acid battery (VRLA),” provides international guidelines for VRLA batteries. It is a comprehensive standard that covers various aspects of VRLA battery

Guide
Mar 24, 2026

IEC/EN 61056-1

This Part of IEC 61056 specifies the general requirements, functional characteristics and methods of test for all general purpose lead-acid cells and batteries of the valve-regulated type : • for either cyclic or float charge application; • in portable equipment, for instance, incorporated in tools, toys, or in static emergency, or uninterruptible power supply and general power supplies.

Guide
May 06, 2026

Yucel-Series

EUROBAT Classification: Standard Commercial 3 to 5 years IEC61056 Yuasa design life @ 20°C up to 5 years ALL DATA IS SUBJECT TO CHANGE WITHOUT NOTICE Issue No.: V.1 / Issue Date: July 2010 Yucel-Series - Valve Regulated Lead Acid Battery-20°C to +60°C ABS (UL.94:HB) ABS (UL94:V0) SPECIFICATIONS DIMENSIONS TERMINAL TYPE OPERATING

Guide
Dec 08, 2025

SWL-Series

Standard Option Flame retardant option (FR) 13.65 (±1%) V 2.275 (±1%) V/cell SWL-Series - Valve Regulated Lead Acid Battery OPERATING TEMPERATURE RANGE-15°C to +40°C-15°C to +50°C SPECIFICATIONS DIMENSIONS ABS (UL94:V0) CHARGE VOLTAGE-15°C to +50°C STORAGE CASE MATERIAL

Guide
Jun 07, 2026

IS 15549 (2005): Satationary Regulated Lead Acid Batteries

3.0 For the purpose of this standard, the definitions given in IS 1885 ( Part 8 ) in addition to the following shall apply. 3.1 Battery Supply Condition Valve regulated lead acid batteries are supplied in factory charged condition. The user of this battery shall

6 Frequently Asked Questions about “Lead-acid valve-regulated battery standard”

What is the IEC/EN Guide to Valve Regulated Lead-acid batteries?

This guide to IEC/EN standards aims to increase the awareness, understanding and use of valve regulated lead-acid batteries for stationary applications and to provide the 'user' with guidance in the preparation of a Purchasing Specification.

What is a Recommended Practice for sizing lead-acid batteries?

Scope: This recommended practice describes a method for sizing both vented and valve-regulated lead-acid batteries in stand-alone PV systems. Installation, maintenance, safety, testing procedures, and consideration of battery types other than lead-acid are beyond the scope of this recommended practice.

What is a valve regulated cell or battery?

In this revision, particular reference is made to 'General Definitions', 'Product Characteristics', 'Design Life', 'Service Life' and 'Safety'. A valve regulated cell or battery is closed under normal conditions by a non-return control valve that allows gas to escape if the internal pressure exceeds a predetermined value.

What are lead-acid battery standards?

Many organizations have established standards that address lead-acid battery safety, performance, testing, and maintenance. Standards are norms or requirements that establish a basis for the common understanding and judgment of materials, products, and processes.

What is a good voltage regulation for a battery?

Excessive ripple on the DC supply across a battery has the effect of reducing life and performance. It is recommended, therefore, that voltage regulation across the system, including the load, should be better than +/- 1% between 5% to 100% load, without the battery connected and under stable state of conditions.

How does a lead-acid battery work?

The cells of this kind of lead-acid battery may either have flat-plate electrodes in prismatic containers or have spirally wound pairs of electrodes in cylindrical containers. The sulphuric acid in these cells is immobilized between the electrodes either by absorption in a microporous structure or in a gelled form.

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