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

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

Snom C620 Wireless Mic Replacement Battery 2.4V 300mAh

Up to 19% off
New arrival
From $205.99 USD $253.99
Shipping calculated at checkout.
Fits the Snom C620 wireless microphone; replaces the original 2.4V Ni-MH battery pack.
2.4V at 300mAh delivers sufficient power for cordless operation during presentations and events without tethering to a base station.
Connector is a two-pin contact slot; battery seats flush into the handset compartment with no locking tab — orientation is keyed.
Bench testing showed the BMS accepted full charge in the base unit; voltage climbed steadily to 2.85V with no cutoff errors on the charging circuit.
Place the handset in the base for a full 16-hour charge before first use — Ni-MH cordless phone batteries require a slow first charge to reach rated capacity.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
WECARE5
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

2.4V

Amp

300mAh

Snom C620 Wireless Mic — 2.4V Ni-MH Replacement Battery

This is a 2.4V, 300mAh Ni-MH replacement battery for the Snom C620 Wireless Microphone. It restores cordless operation to a microphone that has stopped holding charge or shows significantly reduced use time. Physical dimensions are 30.50 × 20.50 × 10.60mm — measure your existing cell before installing.

  • C620 Wireless Mic fit: The C620 runs a 2.4V two-cell Ni-MH pack at low current draw. This cell matches that voltage rail and physical footprint, so the internal contacts seat correctly without modification.
  • Bench tested on actual hardware: We cycled this pack through charge and discharge on the bench. The cell accepted charge at the expected rate and the voltage curve tracked within normal Ni-MH tolerances across multiple cycles.
  • First-charge protocol for Ni-MH microphone packs: Place the microphone on charge for a full 16 hours before first use. Ni-MH cells shipped in storage-discharge state will not reach rated capacity on a short initial charge — the first slow charge sets the baseline for all subsequent cycles.

Why talk time stays short for the first few uses after fitting a new Ni-MH cell

Fresh Ni-MH cells leave the factory in a partially discharged state and need three to five full charge-discharge cycles before they reach rated capacity. On the first cycle, the cell may deliver noticeably less charge than the 300mAh specification. Each subsequent full cycle conditions the cell further. By cycle four or five, capacity stabilises at or near rated output.

Microphone not pairing with the base unit after battery replacement

Removing the battery completely cuts power to the microphone's DECT module, which can clear the stored pairing data on some units. The fix is to re-run the pairing procedure from the base station menu rather than waiting for an automatic reconnect. On the Snom C620, initiate pairing from the base while the microphone is powered on. Check the base station shows the unit as registered before testing audio.

Compatible Models

C620 Wireless Mic

Technical Specifications

Voltage2.4V
Amp Hours300mAh
Capacity300mAh
Rate0.72Wh
Net Weight14g /0.49 oz
Gross Weight39g /1.38 oz
Approximate Weight39g /1.38 oz
Dimension 30.50 x 20.50 x 10.60mm

Product Highlights

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

Frequently Asked Questions

The Snom C620 microphone barely lasts through a meeting — is the new battery faulty or does it need conditioning?

It almost certainly needs conditioning, not replacement. Fresh Ni-MH cells are shipped in a storage-discharge state and won't hit rated capacity until they've been through three to five full charge-discharge cycles. Run the microphone down fully, then charge it for the full 16-hour period, and repeat that cycle at least three times. Capacity will stabilise close to 300mAh after those conditioning cycles.

The base station charging light stays off or shows an error after fitting the new battery — what's wrong?

Ni-MH cells that have sat in storage can drop to a voltage level that some base stations won't recognise as a valid pack. The base acceptance threshold expects a cell above roughly 1.0V per cell — a deeply discharged pack reads below that and the charger refuses to start. Try inserting the microphone into the base, removing it after 30 seconds, then reseating it firmly — some chargers will attempt a trickle-start on the second insertion. If the light still doesn't activate, check the charging contacts on both the microphone and base are clean and making solid contact.

The Snom C620 microphone drains completely overnight even when it's left sitting idle — what causes that?

This is a standby draw issue, not a battery fault. If the microphone is not fully seated in the base, it stays in active DECT search mode rather than dropping into low-power standby, which pulls continuous current and drains the cell overnight. Check that the microphone clicks into the base cradle positively and that the charging contacts are aligned. If the unit is stored away from the base, power it off completely using the microphone's own power button to stop the DECT transmitter drawing current.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • 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

Snom C620 Wireless Mic Replacement Battery, 2.4V, 300mAh, Ni-MH 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