Panasonic Battery BR-AGCF2W BRAGCF2W Battery 6V

BR-AGCF2W | Panasonic BR Series 6V Lithium Battery — 2.2Ah / 2-Cell A-Size / FANUC Beta Amplifier / CNC and Robot Memory Backup

BR-AGCF2W — 2-Cell 6V Backup for FANUC Beta Amplifiers

The BR-AGCF2W is a 2-cell Panasonic BR-series lithium battery delivering 6V at 2.2Ah for FANUC Beta servo and spindle amplifiers. Two Panasonic A-size BR cells in series — each contributing 3V — produce the 6V supply these amplifiers require for both absolute encoder position retention and internal parameter memory backup.

The 2.2Ah capacity places BR-AGCF2W in the middle of the FANUC servo battery range — larger than the smallest FANUC servo batteries, but more compact than the 5Ah C-size pack used in older Alpha ABS amplifiers.

Key Specifications

FANUC Beta Amplifier Compatibility

FANUC Beta SVU: The original Beta Servo Vacuum (SVU) series compact amplifiers — early generation FANUC Beta servo drives.

FANUC Beta iSV: Beta integrated servo (amplifier and motor in one unit) — the compact servo package for space-constrained installations.

FANUC Beta iSVSP: Spindle variant of the Beta iSV family — controlling spindle motors in addition to servo axes.

FANUC Power Mate CNC: The compact FANUC CNC controller for single-axis and small machine applications — uses the same A98L-0031-0011#L battery specification.

Application Scenarios

Beta servo battery alarm on multi-axis CNC: Several Beta servo amplifiers on a machining centre display battery alarms simultaneously — all installed at the same time, all reaching end-of-life together. BR-AGCF2W is replaced on all axes in a single maintenance session.

Robot controller absolute position backup: A FANUC robot using Beta iSV servo drives at each joint requires battery replacement. BR-AGCF2W is replaced across all joint axes to maintain absolute position data — ensuring the robot's calibration and home position survive the next planned power-down.

FAQ

Q1: How does BR-AGCF2W (2-cell, 2.2Ah) compare to the larger BR-CCF2TH (2-cell, 5Ah)?

BR-AGCF2W uses A-size cells (smaller format, 2.2Ah at 6V) — for FANUC Beta SVU and Beta iSV amplifiers. BR-CCF2TH uses C-size cells (larger format, 5Ah at 6V) — for FANUC Alpha ABS servo amplifiers requiring the longer backup duration that C-size capacity provides. The two packs are not interchangeable — they serve different FANUC amplifier families.

Q2: Can BR-AGCF2W be replaced while the FANUC CNC is powered on?

Yes. With CNC power on, the amplifier's internal supply maintains all memory and encoder data. The battery can be replaced without data loss. Connect the new battery before removing the old one where possible. Avoid extended periods with no battery connected while the CNC is powered off.

Q3: What is the COMP-193 PANA designation for BR-AGCF2W?

COMP-193 PANA is the Dantona Industries alternate part number for the BR-AGCF2W assembly — used when ordering through distributor channels that catalogue batteries by the Dantona part system rather than the Panasonic BR-series designation. Both reference the same product.

Q4: How long does BR-AGCF2W last in a FANUC Beta amplifier?

Typically 3–5 years in normal CNC service. The battery discharges only during power-off periods — machines with frequent or extended shutdowns discharge the battery faster. Replace at the battery alarm code; do not wait for position data or parameter loss.