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Energizer LR1/E90 Alkaline Battery 1.5V - 1 Pack

£199
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Energizer LR1/E90 is a 1.5V alkaline battery designed for compact electronics where standard AA or AAA cells won't fit. Also sold under the designations E90, N, 910A and AM5, this battery type powers Bluetooth headsets, glucose monitors, digital thermometers, small alarm sensors and similar devices requiring a slim cylindrical cell.

Measuring 12mm in diameter and 30mm in length (the LR1 is among the smallest common cylindrical batteries), the E90 fits tight battery compartments in medical devices, remote controls for garage doors and security systems, and older camera equipment. The alkaline chemistry provides stable 1.5V output across the discharge curve, which helps devices maintain consistent performance rather than fading gradually as the battery depletes.

Energizer rates the LR1 for long shelf life when stored at room temperature, making it suitable for emergency kit spares and infrequently-used devices. The single-pack format suits users replacing a specific device battery rather than stocking multiples. Cross-compatibility with E90, N, 910A and AM5 codes means this battery can replace cells sold under any of those designations without adapters or modification.

Specification
Weight (KG) 0.01
Width (mm) 45
Height (mm) 12
Depth (mm) 89
Battery Range Energizer Specialist
Cell Size LR1
Cell Composition Alkaline
Frequently Asked

What devices use LR1/E90 batteries?

LR1/E90 batteries power compact electronics including Bluetooth headsets, glucose monitors, digital thermometers, small alarm sensors, garage door remote controls and some older camera equipment. Any device marked as requiring E90, N, 910A or AM5 batteries can use this cell.

Are LR1 and E90 the same battery?

Yes. LR1, E90, N, 910A and AM5 are different designations for the same 1.5V alkaline battery size. The LR1 code is the IEC standard designation, while E90 is Energizer's own code. All are interchangeable.

How long does an LR1 battery last?

Runtime depends on the device's power draw. In low-drain devices like alarm sensors or remote controls, an LR1 can last several months to a year. In higher-drain devices like active Bluetooth headsets, expect weeks rather than months. Energizer rates the shelf life at several years when stored unused.

Can I use rechargeable batteries instead?

Rechargeable N-size NiMH cells exist but are less common than alkaline LR1/E90 batteries. If your device supports rechargeable cells, check that it can operate on the lower 1.2V output of NiMH rather than the 1.5V of alkaline before substituting.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

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    Description

    The Energizer LR1/E90 is a 1.5V alkaline battery designed for compact electronics where standard AA or AAA cells won't fit. Also sold under the designations E90, N, 910A and AM5, this battery type powers Bluetooth headsets, glucose monitors, digital thermometers, small alarm sensors and similar devices requiring a slim cylindrical cell.

    Measuring 12mm in diameter and 30mm in length (the LR1 is among the smallest common cylindrical batteries), the E90 fits tight battery compartments in medical devices, remote controls for garage doors and security systems, and older camera equipment. The alkaline chemistry provides stable 1.5V output across the discharge curve, which helps devices maintain consistent performance rather than fading gradually as the battery depletes.

    Energizer rates the LR1 for long shelf life when stored at room temperature, making it suitable for emergency kit spares and infrequently-used devices. The single-pack format suits users replacing a specific device battery rather than stocking multiples. Cross-compatibility with E90, N, 910A and AM5 codes means this battery can replace cells sold under any of those designations without adapters or modification.

    Specification
    Weight (KG) 0.01
    Width (mm) 45
    Height (mm) 12
    Depth (mm) 89
    Battery Range Energizer Specialist
    Cell Size LR1
    Cell Composition Alkaline
    Frequently Asked

    What devices use LR1/E90 batteries?

    LR1/E90 batteries power compact electronics including Bluetooth headsets, glucose monitors, digital thermometers, small alarm sensors, garage door remote controls and some older camera equipment. Any device marked as requiring E90, N, 910A or AM5 batteries can use this cell.

    Are LR1 and E90 the same battery?

    Yes. LR1, E90, N, 910A and AM5 are different designations for the same 1.5V alkaline battery size. The LR1 code is the IEC standard designation, while E90 is Energizer's own code. All are interchangeable.

    How long does an LR1 battery last?

    Runtime depends on the device's power draw. In low-drain devices like alarm sensors or remote controls, an LR1 can last several months to a year. In higher-drain devices like active Bluetooth headsets, expect weeks rather than months. Energizer rates the shelf life at several years when stored unused.

    Can I use rechargeable batteries instead?

    Rechargeable N-size NiMH cells exist but are less common than alkaline LR1/E90 batteries. If your device supports rechargeable cells, check that it can operate on the lower 1.2V output of NiMH rather than the 1.5V of alkaline before substituting.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.