Description
The NP8P-BT replacement battery is an aftermarket lithium backup battery assembly for compatible Fuji Electric MICREX-SX programmable logic controllers.
This replacement provides a battery option for equipment requiring the NP8P-BT configuration. Furthermore, its connecting wires and brown two-position connector allow installation in matching backup-battery interfaces.
Fuji Electric specifies a nominal voltage of 3.6V and a capacity of 1000mAh for the original NP8P-BT. However, some third-party replacement assemblies use cells with different capacities. Therefore, confirm the actual supplied battery’s rating before installation.
Key Features
- NP8P-BT Replacement: Intended for equipment requiring the original NP8P-BT battery configuration.
- 3.6V Voltage Reference: Matches the original manufacturer’s nominal voltage requirement.
- Primary Lithium Technology: Non-rechargeable battery design.
- Wired Connector: Includes red-and-black leads and a brown two-position connector.
- PLC Backup Application: Intended for compatible industrial controller memory-backup functions.
- Compact Battery Assembly: Cylindrical cell with connecting wires.
- Pack of 1: Contains one replacement battery assembly.
NP8P-BT Replacement Battery Specifications
| Specification | Details |
|---|---|
| Product Type | Aftermarket Compatible Replacement |
| Replaces Part Number | NP8P-BT |
| Compatible Equipment Brand | Fuji Electric |
| Compatible PLC Series | MICREX-SX |
| Original Nominal Voltage | 3.6V |
| Original Rated Capacity | 1000mAh |
| Actual Replacement Capacity | Requires Verification |
| Chemistry | Primary Lithium |
| Rechargeable | No |
| Connector | Brown Two-Position Connector |
| Wiring | Red and Black Leads |
| Pack Quantity | 1 Battery Assembly |
The voltage and capacity references describe the original Fuji Electric battery. Verify the actual replacement cell and connector specifications before use.
Compatible Fuji Electric PLC Systems
The NP8P-BT reference is associated with Fuji Electric MICREX-SX series programmable controllers.
Fuji Electric lists this battery for specified CPU modules within the MICREX-SX SPH family.
However, compatibility depends on the exact controller model, hardware revision and battery connection.
Therefore, confirm the manufacturer’s recommended part number before selecting a replacement.
Why Does a PLC Need a Backup Battery?
Industrial controllers may use batteries to retain designated memory contents when normal power becomes unavailable.
For example, a supported MICREX-SX controller may use a backup battery to maintain memory information during an interruption.
In addition, proper battery maintenance can reduce the risk of unexpected backup-power failure.
Nevertheless, the actual retention period depends on the equipment, battery condition and operating environment.
Original Fuji Electric NP8P-BT vs Compatible Replacement
Original Fuji Electric NP8P-BT
- Manufacturer-specified battery reference
- Nominal voltage: 3.6V
- Rated capacity: 1000mAh
- Intended for supported MICREX-SX controller applications
Compatible NP8P-BT Replacement
- Manufactured or assembled by a third-party supplier
- Intended to replace the NP8P-BT battery
- Must match the required voltage and electrical characteristics
- Must have the correct connector configuration and polarity
- Not manufactured or endorsed by Fuji Electric
This ArcEin listing is for the compatible replacement version.
NP8P-BT vs NP8P-BT1
Although the part numbers look similar, they identify different battery configurations.
The original NP8P-BT uses a 3.6V, 1000mAh lithium battery.
In contrast, Fuji Electric specifies NP8P-BT1 as a larger-capacity 3.6V, 2700mAh battery.
Therefore, do not assume these assemblies are interchangeable. Confirm the required battery configuration using your controller’s manual.
Connector and Polarity Compatibility
The pictured battery includes a brown connector with two wires.
However, industrial connectors can differ in physical dimensions and terminal polarity.
Before installation, compare the replacement’s positive and negative connections with the original approved battery.
Never rely on connector colour or appearance alone.
Installation and Replacement Guidance
- Identify the complete PLC model.
- Verify that the equipment requires NP8P-BT.
- Check the specified battery voltage and chemistry.
- Compare the connector and wiring with the original.
- Follow the manufacturer’s maintenance instructions.
- Take precautions to preserve retained PLC data.
- Install the replacement battery according to the equipment manual.
- Confirm the battery-status indication after installation.
Important: Incorrect replacement procedures may cause memory loss or industrial equipment downtime. Qualified maintenance personnel should perform the work.
Storage and Handling
Store unused primary lithium batteries in a cool, dry location under suitable conditions.
Additionally, protect exposed terminals and connectors from conductive objects.
Inspect the battery’s wrapper, wires and connector before installation.
Do not use batteries showing leakage, swelling, damage or deterioration.
Important Battery Safety Instructions
- Never recharge this primary lithium battery.
- Do not short-circuit the connector terminals.
- Avoid crushing, puncturing or dismantling the cell.
- Keep away from fire and excessive heat.
- Never reverse connector polarity.
- Do not install damaged batteries.
- Keep away from children.
- Follow applicable battery disposal and recycling rules.
Frequently Asked Questions
Is this an original Fuji Electric NP8P-BT battery?
No. This is a third-party compatible replacement battery.
What equipment uses NP8P-BT?
The NP8P-BT reference is associated with supported Fuji Electric MICREX-SX PLC controllers.
What is the original battery voltage?
Fuji Electric specifies 3.6V.
What is the original rated capacity?
The original NP8P-BT is rated at 1000mAh. The supplied replacement’s actual capacity must be verified separately.
Is the battery rechargeable?
No. It uses non-rechargeable primary lithium technology.
Does this replacement include a connector?
Yes. The pictured assembly includes connecting wires and a brown two-position connector.
Can I use NP8P-BT1 instead of NP8P-BT?
Not automatically. The batteries have different specifications and may require different arrangements.
How many batteries are included?
Each order contains one replacement battery assembly.
Buy NP8P-BT Compatible PLC Backup Battery Online at ArcEin
Order the NP8P-BT 3.6V Lithium Replacement Battery for Fuji Electric MICREX-SX PLC from ArcEin for compatible industrial automation applications.
For bulk orders or help identifying the correct battery reference, contact contactus@arcein.in.
Product Disclaimer: This is an aftermarket compatible replacement battery, not an original Fuji Electric-manufactured product. Fuji Electric and MICREX-SX are mentioned solely to identify compatible equipment.
Looking for another Fuji PLC backup battery?
ArcEin also offers an FBT030A-compatible lithium replacement battery for selected Fuji Electric industrial controllers. However, the connector arrangement differs from the NP8P-BT assembly shown here.
Always match your controller’s battery reference, required voltage, connector and polarity before selecting a replacement.
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