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Ma-Com-Ericsson 41B025AK00201 10.8V Replacement Battery

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From $43.99 USD $54.99
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Fits Ma-Com-Ericsson portable radios using 41B025AK00201 or 41B025AK00501 battery packs.
Delivers 10.8V at 1200mAh—standard output for sustained field transmissions without voltage sag.
Ni-MH chemistry uses slide-in connector; seats flush into radio battery slot with positive contact forward.
We bench-tested this cell on Ma-Com-Ericsson dock chargers; BMS accepts charge without fault codes or cutoff delays.
On first insertion into the charger dock, if the indicator LED blinks instead of holding steady, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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.

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🔹 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.

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⚠️ 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

10.8V

Amp

1200mAh

Ma-Com-Ericsson 10.8V Ni-MH Replacement Battery (41B025AK00201)

This is a 10.8V, 1200mAh Ni-MH replacement battery for Ma-Com-Ericsson portable two-way radios. It matches OEM part numbers 41B025AK00201 and 41B025AK00501. Voltage, chemistry, and connector type are matched to the original pack specification.

  • Dual OEM part number coverage: The 41B025AK00201 and 41B025AK00501 designations cover the same voltage rail and BMS handshake profile. Both share the same connector footprint and cell configuration, so one replacement pack covers both OEM references without modification.
  • Bench tested on actual hardware: We cycled this pack through full charge and load discharge on bench equipment. The BMS held the 10.8V nominal rail cleanly under transmit-level draw, with no overcurrent trip or premature cutoff detected during the cycle.
  • Contact strip prep on first dock insertion: If the charger shows a fault LED on first seating, remove the pack and wipe the metal contact strip with a dry cloth. Ma-Com-Ericsson dock chargers require a clean contact surface to complete the BMS handshake before the charge cycle begins — reseating after wiping clears this in most cases.

Why the radio cuts out mid-transmission on a freshly inserted pack

Ni-MH cells ship at storage voltage — typically 1.0–1.1V per cell, which puts a 10.8V nine-cell pack around 9.0–9.9V on arrival. When PTT is pressed, transmit current draw spikes sharply. If the pack voltage is already below the BMS transmit-threshold, the radio's protection circuit trips and drops the output before the transmission completes. This is not a fault in the replacement pack — it is normal BMS behaviour at storage state of charge. Run one full charge cycle before first transmit use, and the cutout will not recur.

Bar indicator showing one fewer bar than expected after a full charge

Ma-Com-Ericsson portables read battery level by measuring terminal voltage against fixed thresholds — there is no fuel gauge chip involved. A new Ni-MH pack may not stabilise at peak voltage until after the first full charge-and-rest cycle. If the indicator shows one bar fewer than expected immediately after charging, let the pack rest in the radio for 15–20 minutes off-charger. Terminal voltage will settle, and the bar reading will correct itself at or above the expected threshold for the charge level.

Replaces Part Numbers

41B025AK00201 41B025AK00501

Technical Specifications

Voltage10.8V
Amp Hours1200mAh
Capacity1200mAh
Rate12.96Wh
Net Weight204g /7.20 oz
Gross Weight274g /9.67 oz
Approximate Weight274g /9.67 oz
Dimension 87.60 x 54.64 x 18.85mm

Product Highlights

  • Brand: Ma-Com-Ericsson
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The charger dock fault LED comes on every time I seat this pack — it never clears to charging. What's wrong?

A new Ni-MH pack arrives at storage voltage, often below the dock's minimum acceptance threshold for Ma-Com-Ericsson chargers. First, remove the pack and wipe the gold contact strip with a dry cloth, then reseat firmly — a dirty contact is the most common cause of a persistent fault LED. If the LED still does not clear, the pack voltage may be too low for the dock to accept; connect it to a compatible desktop charger that allows manual charge initiation, or trickle-charge at 0.1C until terminal voltage reaches at least 10.0V.

Radio drops to reduced TX power partway through a long shift — pack is fully charged at the start. Why?

Sustained RF transmission draws significantly more current than standby or receive mode. Under that load, Ni-MH cell voltage sags — if the sag is deep enough, the radio's BMS interprets it as low-battery and throttles transmit power to protect the pack. This is more pronounced when ambient temperature is high or when the radio has been in heavy continuous use. To reduce mid-shift voltage sag, avoid holding PTT for extended periods without breaks, and keep the radio away from direct heat sources during operation.

Pack inserted correctly and dock shows charging, but it never reaches full — green light never comes on. What's causing this?

When a Ni-MH pack has been stored for an extended period, cell impedance rises unevenly across the nine cells. The dock's charge termination circuit detects the expected delta-V peak earlier than it should, ending the charge cycle prematurely before the pack is genuinely full. Run two or three full charge-discharge cycles on the radio — each cycle conditions the cells and lowers impedance back toward specification. After conditioning, the dock's termination timing normalises and the green indicator will trigger at the correct endpoint.

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