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Inrico IRC380 B-83F Replacement Battery 7.7V 3000mAh

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From $66.99 USD $82.99
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Fits the Inrico IRC380 two-way radio and replaces OEM part number B-83F.
7.7V at 3000mAh delivers sustained power for full-shift operation without mid-transmission voltage sag.
Slides into the IRC380 battery slot with a positive contact tab that seats flush against the radio dock.
We bench-tested this cell on an IRC380 charger dock; the BMS accepted the new pack on first insertion without fault indication.
If the charger dock shows a fault LED after inserting this battery, remove the pack, wipe the gold contact strip on the radio with a dry cloth, and reseat firmly — the IRC380 platform requires a clean contact cycle to accept the new BMS handshake before charging begins.
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
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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
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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.

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🔹 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.

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⚠️ 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

7.7V

Amp

3000mAh

Inrico IRC380 — 7.7V Li-ion Replacement Battery (B-83F)

This is a 7.7V 3000mAh lithium-ion battery for the Inrico IRC380 portable digital two-way radio. It replaces OEM part number B-83F. Voltage and cell count match the IRC380's power rail exactly, so the BMS handshake completes normally on first insertion.

  • IRC380 platform fit: The IRC380 runs a 7.7V two-cell Li-ion configuration with a specific BMS handshake protocol. This pack matches that voltage rail and connector pinout, so the radio's protection circuit recognises the pack without triggering a fault state on power-up.
  • Bench tested on actual hardware: We cycled this pack through full charge and discharge on the IRC380 platform. The BMS held its over-current threshold correctly during simulated PTT transmit spikes, and the pack accepted charge without fault from the IRC380 dock charger.
  • First-insertion contact check: If the charger dock shows a fault LED on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The IRC380 dock requires a clean contact cycle to complete the BMS handshake before it begins charging.

Why the IRC380 cuts out mid-transmission on a new B-83F pack

New Li-ion cells ship at storage voltage — typically around 3.7V to 3.8V per cell, not full charge. The IRC380's BMS monitors voltage under load, and a PTT transmit draw can pull a storage-voltage pack below the BMS cutoff threshold momentarily, causing the radio to drop out. This is not a faulty pack. Charge the battery fully before first use and the transmit current draw will stay well within the BMS window. A fully charged B-83F cell rests at approximately 4.2V per cell, giving the pack enough headroom to handle the IRC380's peak RF output current.

IRC380 bar indicator showing one fewer bar than expected after fitting a new B-83F

The IRC380 uses voltage-threshold bar indicators — each bar corresponds to a voltage band, not a percentage from a fuel gauge chip. A new pack at storage voltage sits in a lower threshold band, so the radio displays fewer bars than the pack actually has capacity to deliver. This is normal behaviour. Charge the pack fully in the dock and the indicator will step up to the correct bar level once cell voltage reaches the top threshold, typically at or above 8.2V across the two-cell pack.

Compatible Models

IRC380

Replaces Part Numbers

B-83F

Technical Specifications

Voltage7.7V
Amp Hours3000mAh
Capacity3000mAh
Rate23.1Wh
Net Weight132g /4.66 oz
Gross Weight282g /9.95 oz
Approximate Weight282g /9.95 oz
Dimension 114.00 x 56.60 x 21.20mm

Product Highlights

  • Brand: Inrico
  • 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

The IRC380 dock charger LED went red and won't clear after I put the new B-83F pack in — what's wrong?

The dock won't accept a pack below its minimum voltage threshold, and new cells arrive at storage voltage, which can fall under that floor. Remove the pack and check the gold contact strip on both the battery and dock for dirt or oxidation — wipe both with a dry cloth and reseat firmly. If the LED still shows fault, the dock needs to see a slightly higher resting voltage before it will initiate a charge cycle; try a brief charge in a compatible external Li-ion charger to bring each cell above 3.5V, then return it to the IRC380 dock.

My IRC380 drops to low TX power halfway through a shift even though the battery looks new — is this a BMS trip?

This is voltage sag under sustained RF output, not a BMS lockout. Li-ion cells have internal resistance that rises as the pack discharges, and continuous transmit draws more current than standby — together they pull the pack voltage down faster than the bar indicator reflects. The radio's power management steps down TX output to protect the final-stage RF amplifier when supply voltage sags. Carry a second fully charged B-83F pack for extended shifts requiring sustained transmit, and allow the primary pack to rest between heavy-use periods to let the voltage recover between transmissions.

After the IRC380 battery sat unused for several months it won't take a charge at all — is it dead?

Extended storage allows Li-ion cells to self-discharge below the BMS recovery threshold, and once a cell drops under approximately 2.5V the protection circuit locks the pack out to prevent unsafe charging. This does not always mean the pack is permanently dead. Some chargers with a soft-start or recovery mode can bring the cell back above the recovery threshold — look for a charger with a "wake" or "recovery" function and apply it for up to 30 minutes, then transfer the pack to the IRC380 dock. If cell voltage does not rise above 3.0V per cell after the recovery attempt, the cells have experienced irreversible capacity loss and the pack should be replaced.

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