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Anritsu 14.4V CMA-5000 Replacement Battery 512HCBATT 5200mAh

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From $65.99 USD $81.99
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Fits Anritsu Nettest CMA-5000 and CMA-5000A; replaces OEM part numbers 512HCBATT, LI202S-NT-4600, and LI202S-NT-46A.
14.4V nominal voltage with 5200mAh capacity delivers sustained power for cable analysis, antenna measurements, and network logging without external power during field surveys.
Connector seats flush into the battery compartment with a positive locking tab; orientation is keyed to prevent reverse insertion into the instrument.
We bench-tested this pack on a CMA-5000A through a full cable-sweep sequence; the BMS held steady under sensor initialization spikes with no early cutoff.
After installing this pack, run the instrument's full calibration cycle from the setup menu before fieldwork — skipping this step triggers premature low-battery warnings during your first measurement session.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

14.4V

Amp

5200mAh

Anritsu Nettest CMA-5000 / CMA-5000A — 14.4V Li-ion Replacement Battery (512HCBATT)

This 14.4V, 5200mAh Li-ion battery replaces the OEM pack in the Anritsu Nettest CMA-5000 and CMA-5000A telecommunications test instruments. It matches the original voltage rail, connector, and BMS communication protocol those platforms require. Also cross-references OEM part numbers LI202S-NT-4600 and LI202S-NT-46A.

  • CMA-5000 and CMA-5000A compatibility: Both models share the same battery bay geometry, 14.4V supply rail, and BMS handshake protocol — a single pack covers both. The connector pinout and charge termination signalling are identical across the CMA-5000 and CMA-5000A hardware revisions.
  • Bench tested on actual hardware: We ran this pack under sustained RF signal analysis load and confirmed that the BMS holds the voltage rail stable through repeated probe-module initialisation cycles without triggering an overcurrent cutoff.
  • Pre-deployment calibration cycle: After installing this pack, run a full calibration cycle through the CMA-5000 instrument menu before taking it into the field. The instrument maps battery state during calibration — skipping this step causes premature low-battery warnings during your first measurement session, even at near-full charge.

BMS lockout after the CMA-5000 sat unused in a carry case for months

Li-ion packs in test instruments self-discharge during storage. If the CMA-5000 sits unused long enough, the pack drops below the BMS recovery threshold — typically around 10–11V for a 14.4V four-cell series string. At that point the BMS latches into protection mode and the instrument will not respond to the power button or the charger. The fix is to apply a trickle charge to the pack directly using a bench supply set to 12V at 200mA for 15–20 minutes until the BMS releases, then transfer to the standard charger. Once the pack reads above 12.5V on the charger, normal CC/CV charge resumes.

CMA-5000 display showing an inconsistent battery percentage at every reboot

The CMA-5000 reads battery state against voltage thresholds stored during previous pack use — when a new or replacement pack is installed, those stored thresholds no longer match the new cell's charge curve. The instrument reports wildly different percentages on successive boots because it is still referencing the old calibration map. Running the full instrument calibration sequence from the system menu forces the CMA-5000 to remap its voltage-to-percentage thresholds against the new pack's actual discharge curve. After one complete calibration cycle, the percentage readout stabilises across reboots.

Compatible Models

Nettest CMA-5000 Nettest CMA-5000A

Replaces Part Numbers

512HCBATT LI202S-NT-4600 LI202S-NT-46A

Technical Specifications

Voltage14.4V
Amp Hours5200mAh
Capacity5200mAh
Rate74.88Wh
Net Weight418g /14.74 oz
Gross Weight568g /20.04 oz
Approximate Weight568g /20.04 oz
Dimension 148.32 x 88.35 x 19.56mm

Product Highlights

  • Brand: Anritsu
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The CMA-5000 shuts down mid-measurement even though the battery indicator showed over 50% — what's happening?

Sustained RF analysis loads draw more current than the idle state the instrument uses to estimate battery percentage, causing a voltage dropout under load that the BMS reads as a protection event. The indicator percentage is calculated at rest; under full sensor load the actual voltage can sag below the BMS cutoff threshold even when the displayed figure looks healthy. We saw this on the bench when running continuous cable loss sweeps — the BMS tripped at the point where the RF module and display were both drawing simultaneously. Charge the pack to full (above 16.4V at the termination point) and run the calibration cycle so the instrument maps the true under-load curve before your next field session.

The CMA-5000 powers on fine, but shuts off the moment I start a USB data transfer to a PC — why?

USB data transfer to a PC adds a secondary current draw on top of the active measurement processor and display backlight — the combined load can push total draw high enough that the BMS trips the overcurrent protection. This failure is more common with partially discharged packs where the cell voltage is already near the lower end of the operating window. Start any USB transfer session with the pack at or above 80% charge — that keeps the resting cell voltage high enough that the sag under combined load stays within the BMS operating band. If the cutoff still occurs, connect the instrument to mains via the AC adapter during data transfer so the battery rail is not the sole supply.

The replacement pack won't take a charge after sitting in the instrument during months of storage — charger light stays red or shows a fault immediately.

Extended storage with a Li-ion pack installed in the CMA-5000 drains the cells through the instrument's standby quiescent current, which is higher than most users expect. If the pack drops below approximately 10.5V, the BMS locks out the charge input as a safety measure and the charger sees a fault condition before it can begin CC phase. Remove the pack and apply a bench supply at 12V, 200mA directly to the pack's charge terminals for 15 minutes to nudge the cell voltage above the BMS recovery threshold. Once the pack measures above 12.0V with a multimeter, re-insert it and place it on the standard CMA-5000 charger — the charger should then accept the pack and begin normal charging.

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