Vertex Standard VX-230 Compatible Battery FNB-V104 7.4V 2600mAh
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Vertex Standard VX-230 Compatible Battery FNB-V104 7.4V 2600mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Vertex Standard VX-230 Compatible Battery FNB-V104 7.4V 2600mAh - is backordered and will ship as soon as it is back in stock.
Voltage
7.4V
Amp
2600mAh
Vertex Standard VX-230 / VX-231L Series — 7.4V Li-ion Replacement Battery (FNB-V104)
This 7.4V, 2600mAh lithium-ion pack replaces the FNB-V104, FNB-V104LI, FNB-V103, FNB-V103LI, FNB-V131Li, and FNB-V132Li batteries. It fits the Vertex Standard VX-230, VX-231L, and VX-234 portable two-way radios. The pack slots directly into the standard battery bay and connects via the same contact strip as the OEM unit.
- VX-230 series compatibility: The VX-230, VX-231L, and VX-234 share the same 7.4V power rail, battery bay dimensions, and gold contact layout. A single BMS profile covers all three models, so the handshake to the radio's protection circuit behaves identically across the range.
- Bench tested on actual hardware: We ran this pack on a VX-231L and cycled the BMS through full charge, PTT transmit loads, and low-voltage cutoff. The protection circuit tripped cleanly at the correct undervoltage threshold with no false lockouts during transmit bursts.
- First insertion into the charger dock: If the dock LED flashes fault on first seat, pull the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The Vertex Standard charger requires a clean contact cycle to accept the new BMS handshake before the charge cycle begins.
Why the VX-230 cuts out mid-transmission on a new FNB-V104
A new lithium-ion cell leaves the warehouse at storage voltage — typically around 3.7V per cell, giving roughly 7.4V at the pack level. During PTT, the VX-230 pulls a sustained transmit current that can cause the BMS to trip overcurrent protection if the cell hasn't been conditioned above that storage floor. This isn't a defective pack — it's the BMS doing its job on a cell that hasn't seen a full charge yet. Run one complete charge cycle before putting the radio into active service and the cutout behaviour stops.
Bar indicator showing one fewer bar than expected after fitting the FNB-V104
The VX-230 uses voltage-threshold steps to drive the bar display, not a fuel gauge chip. A new pack sitting at storage voltage reads as one bar below full even though the cell capacity is intact. After a full charge cycle brings the pack to 8.4V, the bar indicator steps up to the correct level. If bars remain low after a complete charge, check the dock contacts — a resistive connection causes a voltage drop the radio interprets as a partially depleted pack.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Vertex Standard
- 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 VX-231L drops to reduced TX power partway through a shift — is this the new FNB-V104 pack failing?
Sustained RF output draws higher current than standby, and if the cell voltage sags below the radio's reduced-power threshold, the VX-231L steps down transmit power automatically to protect the circuit. On a new pack this usually means the battery hasn't completed a proper conditioning charge. Run a full uninterrupted charge to 8.4V, then retest under normal PTT load — voltage sag during TX should stabilise after the first one or two full cycles.
The charger dock fault LED never clears after I insert the FNB-V104 — it just keeps blinking.
A persistent fault LED typically means the pack voltage is below the dock's acceptance threshold, which happens when a cell has been in storage long enough to drop under 7.0V. The dock won't initiate a charge cycle on a pack it reads as critically low. Pull the pack, let it sit at room temperature for 10 minutes, reseat it firmly with clean contacts, and try again — most Vertex Standard docks will accept the pack and begin a recovery charge once the contact resistance is eliminated and the BMS wakes correctly.
The FNB-V104 was stored unused for several months and now the radio won't power on at all.
Extended storage at partial charge lets lithium-ion cells drift below the BMS recovery threshold — around 6.0V for a 7.4V two-cell pack — triggering a lockout that blocks power output entirely. Place the pack in the Vertex Standard dock and watch for any LED activity within the first two minutes. If the dock shows even a brief charge LED before faulting, the BMS is still recoverable; leave it seated and the dock will trickle-charge the cells back above the 7.0V re-initialisation threshold before switching to normal charge.
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