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Maxon Legacy PL2215 Replacement Battery 7.4V 1800mAh

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From $39.99 USD $49.99
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Fits Maxon Legacy PL2215, PL2245, PL2415, PL2445 two-way radios as OEM replacement pack.
7.4V and 1800mAh chemistry sustains voice transmission cycles without mid-shift voltage sag.
Gold contact strip slides into radio battery slot; locking tab seats flush against housing.
We bench-tested this cell on a PL2215 bench charger; BMS accepted handshake on first insertion.
If the charger dock shows a fault LED after inserting this pack, remove it, wipe the gold contact strip with a dry cloth, and reseat firmly — the Maxon platform requires a clean contact cycle to accept the new BMS before charging begins.
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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

7.4V

Amp

1800mAh

Maxon Legacy PL2215 / PL2245 / PL2415 / PL2445 — 7.4V Li-ion Replacement Battery

This 7.4V, 1800mAh Li-ion battery replaces the factory pack in the Maxon Legacy PL2215, PL2245, PL2415, and PL2445 two-way radios. All four models share the same battery footprint, voltage rail, and BMS handshake protocol. Capacity is rated at 1800mAh (13.32Wh) — the same spec as the original pack.

  • PL2215 / PL2245 / PL2415 / PL2445 platform fit: These four radios share a common battery bay dimension, 7.4V nominal rail, and connector pinout. The BMS in each unit expects the same charge-acceptance handshake, so one replacement pack covers the full Legacy series without modification.
  • Bench tested on actual hardware: We cycled this pack through transmit-load draws that mirror PTT bursts. The BMS held cutoff thresholds correctly at both ends — no premature low-voltage trip under a simulated transmit surge, and no overcharge at the top-of-charge ceiling.
  • First insertion into the dock: If the charger dock shows a fault LED on the first seating, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The Legacy dock requires a clean contact cycle to accept the new BMS handshake before it begins the charge sequence.

Why the Legacy PL2215 cuts out mid-transmission on a new battery

New Li-ion cells ship at storage voltage — typically around 3.6–3.7V per cell, not the full 4.2V per cell of a charged pack. Under the high current draw of a PTT transmit burst, a cell at storage voltage sags further than the BMS overcurrent threshold allows. The radio's BMS reads that sag as a fault and cuts the output. A full charge cycle before first use brings each cell to 4.2V and eliminates the sag margin that triggers the cutoff.

Bar indicator showing one fewer bar than expected after swapping packs

The Legacy series uses voltage-threshold bar indicators — each bar represents a voltage band, not a precise capacity percentage. A new pack at storage voltage sits in the lower threshold band and displays fewer bars even though the cell is not depleted. Charge the pack fully in the dock until the charge LED goes green, then reseat it in the radio. After a complete charge, the indicator should read the top voltage band and display the correct bar count.

Compatible Models

Legacy PL2215 Legacy PL2245 Legacy PL2415 Legacy PL2445

Technical Specifications

Voltage7.4V
Amp Hours1800mAh
Capacity1800mAh
Rate13.32Wh
Net Weight101g /3.56 oz
Gross Weight241g /8.50 oz
Approximate Weight241g /8.50 oz
Dimension 111.00 x 60.30 x 17.60 mm

Product Highlights

  • Brand: Maxon
  • 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

My Legacy PL2215 drops to low transmit power partway through a shift — is this the battery?

Yes, this is voltage sag under sustained RF output. As the pack discharges below roughly 7.0V under transmit load, the radio's power control circuit steps down TX power to stay within the BMS voltage floor. The fix is to swap to a freshly charged pack at the start of each shift rather than running the existing pack to depletion. If the drop happens early in a shift on a fully charged pack, clean the battery contacts — high contact resistance amplifies sag under load.

The dock charger fault LED blinks constantly and never clears after I insert the new pack — what's wrong?

The dock is rejecting the BMS handshake because the pack voltage is below the charger's acceptance threshold. This happens when a new cell ships at low storage voltage and the dock expects a minimum voltage before it will enter charge mode. Remove the pack, wait 30 seconds, wipe the gold contact strip with a dry cloth, and reseat firmly. If the fault LED persists, the pack may need a pre-charge — some Maxon docks require the pack to read at least 6.0V at the contacts before the charge cycle initiates.

The radio powers on and shows bars, but the pack won't hold a charge after sitting unused for several weeks — what happened?

Li-ion cells self-discharge at roughly 1–2% per week at room temperature. A pack left unused for several weeks drops to storage voltage, and if it sat long enough to fall below the BMS recovery threshold (typically around 2.5V per cell / 5.0V pack), the BMS may enter lockout to prevent damage. Place the pack in the dock and leave it for a full charge cycle — some chargers have a trickle pre-charge mode that recovers cells from below the acceptance floor. If the dock shows green after a full cycle but the pack still drops quickly under use, the cells have degraded and the pack should be replaced.

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