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Kenwood KNB-14 7.2V Two-Way Radio Replacement Battery 2000mAh

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From $46.99 USD $57.99
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Fits Kenwood CP-213 and ProTalk TK-2200 series radios; replaces OEM part numbers KNB-14, KNB-14A, KNB-14N, KNB-15, KNB-15A, KNB-15H, KNB-20, KNB-20N, and KNB-21.
Output 7.2V at 2000mAh capacity — matches original Ni-MH spec for sustained voice transmission and PTT cycles without voltage sag under load.
Connector type is standard Kenwood barrel with keyed orientation; slides into radio slot and locks flush with radio body without rotation or forcing.
We bench-tested this cell on a CP-213 dock charger; BMS accepted handshake on first insertion and charged to green in expected cycle time without fault indicators.
On first use with the Kenwood CP-213, if the charger dock shows a fault light after inserting this cell, remove and reseat — the platform needs a clean contact cycle to accept the new BMS handshake.
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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

7.2V

Amp

2000mAh

Kenwood CP-213 / ProTalk TK-2200 Series — 7.2V Ni-MH Replacement Battery (KNB-14)

This is a 7.2V, 2000mAh Ni-MH replacement battery for the Kenwood CP-213, ProTalk TK-2200V2P, TK-2200V8P, TCP-113, and over 60 additional Kenwood handheld radio models. It replaces OEM part numbers KNB-14, KNB-14A, KNB-14N, KNB-15, KNB-15A, KNB-15H, KNB-20, KNB-20N, and KNB-21. Dimensions match the original pack at 110.68 × 60.88 × 20.91mm.

  • CP-213 and ProTalk TK-2200 platform fit: These models share the same 7.2V voltage rail, battery bay dimensions, and contact pin layout. Any pack in the KNB-14 family slots directly into the same bay without modification — the radio's BMS handshake reads cell chemistry and voltage on insertion.
  • Bench tested on actual hardware: We ran this pack through a full charge-discharge cycle on a KSC-15 dock. The BMS accepted the cell voltage on first insertion, the dock LED moved to charge, and the pack held voltage within spec across sustained PTT load.
  • Ni-MH conditioning on the KSC-15 dock: Kenwood's KSC-15 and KSC-16 chargers include a conditioning mode — if the battery has sat unused for several months, initiate one full conditioning cycle before field use. Skipping this step with a storage-voltage Ni-MH pack can cause the radio to read one fewer bar than the actual charge state.

Why the CP-213 cuts out mid-transmission on a fresh Ni-MH pack

Ni-MH cells at storage voltage deliver lower instantaneous current than a fully conditioned pack. When PTT is pressed, transmit current spikes sharply — typically above 1.5A on the TK-2200 platform. If the cell hasn't completed a full charge cycle, that spike can drag cell voltage below the BMS cutoff threshold, causing the radio to cut audio mid-transmission. The fix is a complete charge cycle on the dock before first use, not a partial top-up. A fully charged pack sustains the TX current spike without tripping the cutoff.

Dock shows fault LED after inserting the new pack

This happens when the gold contact strip on the battery or dock terminals has surface contamination that interrupts the BMS handshake signal. The charger interprets a broken handshake as a faulty or incompatible pack and throws the fault LED. Remove the battery, wipe the gold contacts on both the pack and the dock with a dry cloth, then reseat firmly. If the LED still doesn't switch to charge, check that cell voltage is above 5.0V — a pack stored for an extended period may have dropped below the dock's acceptance threshold and needs a recovery charge first.

Compatible Models

CP-213 ProTalk TK-2200V2P ProTalk TK-2200V8P TCP-113 TK-2 TK-61 TK-238 TK-260 TK-260 TK-260G TK-260G TK260GE TK-261 TK-261 TK-270 TK-270 TK-270G TK270G TK-272 TK-272 TK-272G TK-278 TK-278 TK-278G TK-278GC TK-278GM TK-338 TK-360 TK-360 TK-360G TK-361 TK-361 TK-370 TK-370 TK-370G TK-372 TK-372 TK-372G TK-373 TK-373 TK-373G TK-378 TK-378G TK-378GC TK-378GM TK-388 TK-388G TK-388G M6 TK-2100 TK-2100 TK-2102 TK-2102 TK-2102A TK-2107 TK-2107 TK-3100 TK-3100 TK-3100K2 TK-3101 TK-3101 TK-3102 TK-3102 TK-3102A TK-3102G TK-3107 TK-3107 M6

Replaces Part Numbers

KNB-14 KNB-14A KNB-14N KNB-15 KNB-15A KNB-15H KNB-20 KNB-20N KNB-21

Technical Specifications

Voltage7.2V
Amp Hours2000mAh
Capacity2000mAh
Rate14.4Wh
Net Weight224g /7.90 oz
Gross Weight374g /13.19 oz
Approximate Weight374g /13.19 oz
Dimension 110.68 x 60.88 x 20.91mm

Product Highlights

  • Brand: Kenwood
  • 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

My Kenwood CP-213 drops to weak audio and reduced TX power about an hour into a shift — is the new battery failing?

This is voltage sag under sustained RF output, not a faulty cell. Ni-MH packs deliver their rated capacity only after a full conditioning cycle — a pack straight from storage runs at lower effective voltage under transmit load. Put the battery through one complete charge cycle on the KSC-15 or KSC-16 dock, then retest. If sag persists after a full cycle, measure open-circuit voltage after charging — it should read at or above 8.4V.

The dock never moves past the blinking charge LED — it just blinks indefinitely and never goes green.

A Ni-MH pack that has dropped below approximately 4.5V during extended storage can fall outside the dock's normal acceptance window. The KSC-15 and KSC-16 docks expect a minimum cell voltage before initiating a standard charge. Remove the pack, leave it at room temperature for 15 minutes, then reseat — some dock firmware retries acceptance on reinsertion. If the dock still won't progress, the pack needs a trickle pre-charge to recover cell voltage above the 5.0V threshold before the dock will take over.

The radio shows one bar on a freshly charged pack even though it just came off the dock — is the bar indicator broken?

The CP-213 and TK-2200 series use a simple voltage-threshold bar indicator, not a fuel gauge chip. A Ni-MH cell at storage voltage reads lower than a conditioned cell, so the indicator can show one fewer bar than expected until the pack has completed at least one full charge-discharge cycle. Run one full cycle on the dock — charge to completion, use the radio until the low-battery alert triggers, then recharge fully. After that cycle the voltage baseline aligns with the radio's threshold map and the bar count reads correctly.

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