New Panasonic BR-CCF2TH BR-C PLC 6V 5000mAh Lithium Battery with Wire BRCCF2TH

BR-CCF2TH | Panasonic 6V 5000mAh Lithium Battery — 2-Cell C-Size / Wire Leads and Connector / FANUC Alpha ABS Backup

5000mAh at 6V — High-Capacity Absolute Encoder Backup

The BR-CCF2TH contains two Panasonic C-size BR lithium cells in series — the largest cell format in the FANUC servo battery range. The C-size format delivers approximately 2500mAh per cell, and two cells in series provide the 5000mAh total capacity at 6V.

This high capacity is what distinguishes the BR-CCF2TH from smaller FANUC servo batteries:

Extended standby duration: At 5000mAh, the BR-CCF2TH maintains FANUC Alpha ABS encoder position data through much longer power-off periods than A-size or 2/3A-size packs — weeks or months of continuous power-off, rather than days.

Lower internal resistance: C-size cells have a larger electrode area than smaller formats — providing lower internal resistance and better pulse current capability for the slightly higher standby current demands of larger FANUC Alpha amplifier systems.

Key Specifications

Wire Leads and Connector — Installation Interface

The BR-CCF2TH uses wire leads terminating in a connector — the standard FANUC Alpha servo battery interface:

Wire leads: The flexible wires from the cell pack allow the battery to be positioned within the amplifier's battery compartment without mechanical strain on the cell — the leads flex to accommodate the compartment geometry.

Connector: The moulded connector at the end of the wire leads mates with the amplifier's battery socket. The brown 2-pin JAE connector format is polarised — it can only be inserted in the correct orientation, preventing reverse connection.

No tools required: The connector installation requires no tools — press to connect, press the tab to release. Battery replacement takes under a minute once the amplifier access panel is open.

Application Scenarios

Alpha servo amplifier module annual maintenance: A facility maintaining FANUC Alpha series servo amplifiers includes BR-CCF2TH replacement in the annual CNC maintenance programme — replacing all Alpha servo batteries at the same time regardless of individual alarm status.

Machine tool ABS data after extended summer shutdown: A manufacturing facility shuts down for four weeks in summer. Before shutdown, BR-CCF2TH condition is verified on all Alpha servo axes — confirming all absolute encoder positions will be retained through the four-week power-off period.

FAQ

Q1: What is the energy stored in BR-CCF2TH, and how does it compare to smaller FANUC batteries?

BR-CCF2TH: 6V × 5Ah = 30Wh. Compare: BR-AGCF2W (2-cell A-size): 6V × 2.2Ah = 13.2Wh; BR-2/3AGCT4A (4-cell 2/3A): 6V × 2.9Ah = 17.4Wh. The C-size cells in BR-CCF2TH store more than twice the energy of the A-size pack — appropriate for the higher-capacity Alpha ABS amplifier applications.

Q2: Can BR-CCF2TH be replaced while the FANUC Alpha amplifier is powered on?

Yes. Replace with the amplifier powered — the drive supply maintains encoder and parameter memory. Disconnect the old connector and connect the new BR-CCF2TH quickly. Avoid replacing with power completely off unless the new battery is connected within a few seconds to prevent ABS position data loss.

Q3: Does BR-CCF2TH work in both FANUC Alpha and Beta amplifier systems?

No — BR-CCF2TH is specifically for FANUC Alpha ABS servo amplifiers (A06B-6073, 6079, 6080, 6096 series). Beta amplifiers use the smaller A-size BR-AGCF2W. Both use the same brown 2-pin JAE connector interface, but the physical cell size and capacity class are different — confirm from the installed amplifier's maintenance manual which battery applies.

Q4: What FANUC alarm code indicates BR-CCF2TH needs replacement?

The FANUC CNC generates a servo-axis-specific battery alarm — typically alarm 9F in the CNC's alarm list, indicating battery voltage low on the Alpha ABS circuit. The alarm appears at power-on when voltage has dropped below the threshold. Replace at alarm 9F — not after encoder data loss or the amplifier's failsafe absolute position initialisation is triggered.