Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com
WELCOME5
BatteryWeb

Kenwood KNB-46L Replacement Battery 7.4V 1800mAh

Up to 20% off
New arrival
From $40.99 USD $50.99
Shipping calculated at checkout.
Fits Kenwood TK-3230, TK-3230BKP, TK-3230DX, and ProTalk XLS 464–467 models; replaces OEM KNB-46L battery pack.
7.4V lithium-ion cell at 1800mAh delivers stable voltage under sustained RF transmit loads on this portable radio.
Slides into the radio's battery slot with a single locking tab; connector orientation is keyed to prevent reverse insertion.
We ran a full discharge cycle on the TK-3230 dock and confirmed the BMS accepted handshake on first charge without fault LED.
If the charger dock shows a fault light after inserting this cell, 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.
Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe
✦

Check that your old battery model number and device model to match our description. This makes sure they work together.

✦

We ship your order same day if you buy it before 4 PM EST.

Warranty

Let customers speak for us

from 11 reviews

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.
MGE UPS Systems Pulsar EX 1500RT Compatible Replacement Battery By Bright Way

Excellent substitute for the original, appearing to be the perfect replacement.

Alberto J.
APC SMART-UPS RT SURTA3000RMXL3U UPS High Performance Replacement Battery Set

It was what i was looking for. Support is fast

Jaswal
WAHEGURUG - RADHASWAMI

Fast service

Mark Casias
BatteryWeb

Perfect fit

Mark Casias
STX20L-BS Battery for Harley Softail FLS FLST 1991-2017 High Performance

Works Perfectly!!

Ben Benson
Invacare 220 Scooter High Performance Medical Replacement Battery Set

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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 TK-3230 Series — 7.4V Li-ion Replacement Battery (KNB-46L)

This is a 7.4V, 1800mAh Li-ion replacement for the Kenwood KNB-46L battery pack. It fits the TK-3230, TK-3230BKP, TK-3230DX, and ProTalk XLS 464–467 series portable two-way radios. Dimensions are 97.20 × 63.30 × 29.62 mm — same form factor as the OEM pack.

  • TK-3230 platform fit: The TK-3230 family shares a common battery bay and contact layout across its variants. This pack matches that connector pinout and runs the same 7.4V nominal rail the radio expects — no adapter or modification needed.
  • Bench tested on actual hardware: We cycled this pack through transmit loads on the TK-3230 platform. The BMS handled the PTT current spike without tripping into overcurrent lockout, and the pack seated and handshook correctly with the Kenwood drop-in charger dock.
  • First insertion into the charger dock: If the dock shows a fault LED on first insertion, pull the pack out, wipe the gold contact strip with a dry cloth, and reseat it firmly. The Kenwood charger platform requires a clean contact cycle to complete the BMS handshake before it will begin charging.

Why the TK-3230 cuts out mid-transmission on a new KNB-46L

New Li-ion cells ship at storage voltage — typically 3.7–3.8V per cell, not full charge. When PTT is pressed, transmit current spikes sharply. If the pack hasn't been fully charged first, that spike can drag cell voltage below the BMS overcurrent threshold and trigger a momentary cutout. The fix is straightforward: charge the pack fully before putting the radio into service. A full charge brings each cell to 4.2V and gives the BMS the headroom it needs to absorb the transmit surge without shutting down.

Bar indicator showing one fewer bar than expected on a fresh pack

The TK-3230 reads battery state through voltage thresholds — it doesn't have a fuel gauge chip. A new pack at storage voltage sits below the top threshold, so the radio displays one bar short of full even though the pack is not faulty. Place the pack on charge in the Kenwood dock and run it to a complete charge cycle. Once the cells reach 8.4V across the pack, the radio will display the correct full-bar reading on next power-on.

Compatible Models

TK-3230 TK-3230BKP TK-3230DX ProTalk XLS 464-467 TK-3230XLS TK-3230K

Replaces Part Numbers

KNB-46L

Technical Specifications

Voltage7.4V
Amp Hours1800mAh
Capacity1800mAh
Rate13.32Wh
Net Weight192g /6.77 oz
Gross Weight262g /9.24 oz
Approximate Weight262g /9.24 oz
Dimension 97.20 x 63.30 x 29.62 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-3230 drops to low TX power halfway through a shift — is this a radio fault or the battery?

This is almost always voltage sag under sustained RF output, not a radio fault. As the pack depletes, cell voltage drops under the transmit load and the radio's protection circuit reduces TX power to stay within operating voltage. Check the bar indicator mid-shift — if it shows two bars or fewer, the pack is the limiting factor. Charge the pack before your next shift and avoid leaving it partially discharged between uses.

The Kenwood charger dock blinks a fault LED and never clears after I insert the new KNB-46L pack — what's wrong?

A fault LED that won't clear usually means the pack voltage is below the dock's acceptance threshold when first inserted. New packs can arrive at low storage voltage after time in transit. Remove the pack, wipe the gold contact strip with a dry cloth, reseat it firmly, and leave it in the dock for 10–15 minutes — some Kenwood docks require a brief trickle phase before they accept the pack and switch to normal charge mode. If the fault clears, let it run to a full cycle before use.

The TK-3230 cuts out the moment I press PTT, then recovers a second later — what causes this?

This is a BMS overcurrent trip triggered by the transmit current spike hitting an underpowered or cold pack. The BMS momentarily disconnects the output, the radio resets, then the BMS resets itself. It happens most often when the pack is below 50% charge or has been sitting in a cold environment. Charge the pack fully and bring it to room temperature — at 8.4V under no-load, the BMS has enough headroom to absorb the PTT surge without tripping.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Related Products

Kenwood TK-3230 Replacement Battery, 7.4V, 1800mAh, Li-ion 1

Engineered for Performance. Built to Last.

Check out our top-rated selection of reliable products built to last. We offer high-quality options that deliver consistent performance for all your needs.

Our Collections