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Kenwood KNB-14 CP-213 Replacement Battery 7.4V 1800mAh

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From $39.99 USD $49.99
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Fits Kenwood CP-213, ProTalk TK-2200V2P, TK-2200V8P, TCP-113 and replaces KNB-14, KNB-14A, KNB-14N, KNB-15, KNB-15A, KNB-15H, KNB-20, KNB-20N, KNB-21.
7.4V 1800mAh pack delivers 13.32Wh output — maintains voltage stability during sustained PTT cycles on portable 400–470MHz radios.
Slide connector matches original Kenwood dock; battery seats flush with vertical locking tab on left edge of radio casing.
Bench test on CP-213 radio showed BMS accepted dock voltage handshake on first insertion; transmitted full RF power without mid-cycle dropout or voltage sag.
If the charger dock shows fault LED after first insertion, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly — the Kenwood platform requires a clean contact cycle to accept the new BMS handshake 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

Kenwood CP-213 / ProTalk TK-2200 Series — 7.4V Li-ion Replacement Battery (KNB-14)

This 7.4V 1800mAh Li-ion battery replaces the KNB-14, KNB-14A, KNB-14N, KNB-15, KNB-15A, KNB-15H, KNB-20, KNB-20N, and KNB-21 OEM packs. It fits the Kenwood CP-213, ProTalk TK-2200V2P, ProTalk TK-2200V8P, TCP-113, and over 62 additional Kenwood models. The pack slots into the same bay and runs the same 7.4V rail as the original.

  • CP-213 and TK-2200 series fitment: These models share a common battery bay geometry, contact pin layout, and 7.4V power rail. The BMS handshake protocol is identical across the KNB-14 through KNB-21 family, so one cell design covers all of them without adapter plates or firmware changes.
  • Bench tested on actual hardware: We ran this pack on a CP-213 and a TK-2200V2P. The BMS accepted the initial handshake on both docks without fault. Transmit current spikes during PTT were absorbed without triggering overcurrent cutoff at rated output power.
  • First insertion into the charger dock: If the dock LED flashes fault on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat it firmly. The Kenwood dock requires a clean contact cycle to register the new BMS before the charge sequence begins — a single reseat usually clears it.

Why the CP-213 cuts out mid-transmission on a freshly inserted battery

New Li-ion cells ship at storage voltage — typically 3.6–3.7V per cell, or around 7.2V total. When the CP-213 keys up, transmit current can jump sharply. If the cell is still at storage voltage and not yet at a full charge state, the BMS may read that current spike as an overcurrent event and trip. The fix is straightforward: charge the pack fully before the first transmit cycle, not just before the first shift. A rested, fully charged cell handles the PTT inrush without tripping the cutoff.

Bar indicator showing one fewer bar than expected after charging completes

The TK-2200 and CP-213 use a voltage-threshold bar display — each bar maps to a voltage band, not a fuel gauge chip. A new pack fresh from storage may read one bar low even after the dock shows green, because the resting voltage hasn't yet stabilised at the top of the charge curve. Give the pack 15–20 minutes off the charger before checking the indicator. If the bar count still reads low after a full charge cycle and a rest period, measure the pack voltage across the contacts — a healthy fully charged cell should read at or above 8.2V.

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

Voltage7.4V
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: Kenwood
  • 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 TK-2200 drops to low TX power partway through a long shift — is that the battery or the radio?

That's a voltage sag issue, not a radio fault. Under sustained RF output, a degraded or partially charged Li-ion pack can't hold the voltage rail steady, and the radio steps down transmit power to protect the circuit. It is not a fault code — it's the radio responding to a sagging supply voltage. Charge the replacement pack fully before the shift, and check that the dock contact strip is clean so the charge cycle completes properly.

The charger dock LED never turns green after inserting this new pack — it just stays on solid amber or keeps blinking.

A new pack shipped at storage voltage can sit below the dock's acceptance threshold, causing the charger to stall or loop. Remove the pack, wipe the gold contact strip with a dry cloth, and firmly reseat it — the Kenwood dock needs a clean contact to register the BMS handshake before the charge sequence starts. If the LED still won't advance after reseating, check that the pack voltage across the contacts reads at least 6.0V; anything below that requires a recovery charge using a compatible external charger before the dock will accept it.

The radio powers on fine but cuts out completely the moment I press PTT — what's happening?

This is a BMS overcurrent trip caused by the transmit current spike hitting a cell that's still at storage voltage. When PTT is pressed, current demand jumps sharply; if the cell hasn't been brought up to a full charge state, the BMS reads that spike as an overcurrent event and shuts the pack down. The radio powers back on because the BMS resets at rest, but trips again the next time you transmit. Charge the pack fully — to at least 8.2V measured at the contacts — before the first transmit cycle.

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