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

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

LEX L10 Two-Way Radio Replacement Battery 3.7V 4500mAh

Up to 19% off
New arrival
From $57.99 USD $71.99
Shipping calculated at checkout.
Fits LEX L10, L10i, L10ig, and L10ig LTE two-way radios; replaces OEM battery SKU CS-MOX100TW.
3.7V, 4500mAh lithium-ion cell delivers full transmit power across the LEX platform without sag during sustained RF output.
Connects via standard two-way radio vertical connector with positive terminal contact seated flush; no locking tab required.
We bench tested this pack on a LEX L10 radio through back-to-back PTT cycles — BMS accepted the handshake cleanly and held stable voltage under transmit load.
On first dock insertion, if the charger shows a fault LED, remove the battery, wipe the gold contact strip with a clean dry cloth, and reseat firmly — the LEX platform requires a contact cycle to accept the new BMS before charging starts.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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

Please Confirm Delivery Timeline

Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
4.8
★★★★★
★★★★★
Average Customer Rating
By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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

3.7V

Amp

4500mAh

LEX L10 Series — 3.7V Li-ion 4500mAh Replacement Battery

This 3.7V, 4500mAh Li-ion battery fits the LEX L10, L10i, L10ig, and L10ig LTE portable two-way radios. It replaces the original pack when capacity has degraded or the cell no longer holds a working charge. Voltage and form factor match the original battery bay on all four variants.

  • L10 platform compatibility: The L10, L10i, L10ig, and L10ig LTE share the same battery bay geometry, contact layout, and 3.7V voltage rail. One battery fits all four — the BMS negotiation handshake runs the same across the platform.
  • Bench tested on actual hardware: We ran this pack through a full charge cycle and a PTT transmit load test. The BMS held steady under the transmit current spike and released cleanly when the load dropped — no false overcurrent trip.
  • First insertion into the dock: If the dock LED shows a fault on the first seating, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly. The L10 charger platform requires a clean contact cycle to accept the new BMS handshake before charging begins.

Why the L10 cuts out mid-transmission on a fresh battery

New cells ship at storage voltage — typically around 3.6V — not a full charge. When you press PTT, the radio draws a sharp transmit current spike. If the cell voltage is low enough, the BMS reads that spike as an overcurrent event and trips the protection circuit. The radio cuts out, not because the battery is faulty, but because the cell needs a full charge cycle before it can handle peak TX load. Charge the pack completely before the first use in a high-draw transmit scenario.

Bar indicator showing one fewer bar than expected after fitting this pack

The L10 uses a voltage-threshold bar indicator — each bar corresponds to a voltage band, not a percentage read from a chip. A new battery at storage voltage sits at roughly 3.6V, which maps to a lower bar than a fully charged cell at 4.1–4.2V. This is not a fault with the replacement pack. Charge the battery fully in the dock and the bar indicator will rise to reflect the correct resting voltage.

Compatible Models

L10 L10i L10ig L10ig LTE

Technical Specifications

Voltage3.7V
Amp Hours4500mAh
Capacity4500mAh
Rate16.65Wh
Net Weight94.2g /3.32 oz
Gross Weight119.2g /4.20 oz
Approximate Weight119.2g /4.20 oz
Dimension 72.22 x 52.60 x 12.00mm

Product Highlights

  • Brand: LEX
  • 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 LEX L10 cuts out every time I press PTT — is the new battery tripping?

Yes, and it is almost always a storage-voltage issue, not a faulty pack. New cells arrive at roughly 3.6V, and the sharp current spike from a PTT press can trip the BMS protection circuit at that voltage. Charge the battery fully before the first transmission and the BMS will hold steady under TX load.

The L10 dock shows a fault LED and never starts charging after I fit the new battery — what clears it?

The dock fault LED on the L10 charger platform triggers when the contact cycle is not clean enough for the BMS handshake to complete. Remove the battery, wipe the gold contact strip with a dry cloth, and reseat it firmly. If the fault persists, check that the battery is seated flush — a 1mm gap on the contact rail is enough to block the handshake.

The radio drops to noticeably weaker TX output mid-shift — the battery looked fine at the start of the day

This is voltage sag under sustained RF output. As the cell discharges through a long shift, internal resistance rises and the voltage under TX load drops below the radio's full-power threshold. The L10 steps down transmit power rather than cutting out entirely. Start each shift with a fully charged pack and the radio will hold full TX power through the load curve until the cell is genuinely depleted.

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

Motorola LEX L10 Replacement Battery, 3.7V, 4500mAh, 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