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HYT TC-500 Replacement Battery BH1104 6V 1200mAh Ni-MH

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From $32.99 USD $40.99
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Fits HYT TC-500, TB75, TC-500-U1, TC-500-V1 radios; replaces OEM part numbers BH1104, BH1301, BH1106, BH1302.
6V, 1200mAh Ni-MH pack delivers stable voltage under sustained PTT transmit cycles without mid-shift power sag.
Gold-plated connector seats vertically into dock with positive contact first; locking tab seats flush against radio chassis.
We bench-tested against TC-500 dock—pack accepted on first charge cycle with no fault light and steady bar climb.
On first insertion into the TC-500 charger dock, if the LED blinks red instead of solid green, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly—the HYT dock requires full contact pressure to register the new pack voltage threshold before charging begins.
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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.

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

6V

Amp

1200mAh

HYT TC-500 / TB75 Series — 6V Ni-MH Replacement Battery (BH1104)

This is a 6V, 1200mAh Ni-MH replacement battery for the HYT TC-500, TC-500-U1, TC-500-V1, and TB75 two-way radios. It replaces OEM part numbers BH1104, BH1106, BH1301, and BH1302. Physical dimensions match the original pack at 99.34 × 53.72 × 32.84mm, so the battery seats correctly in the radio chassis without modification.

  • TC-500 and TB75 platform fit: Both the TC-500 variants and the TB75 share the same battery bay format, contact pin layout, and 6V supply rail. A single pack covers all four model designations without adapter plates or pin swaps.
  • Bench tested on actual hardware: We cycled this pack through charge-discharge on a TC-500 unit. The BMS accepted the dock handshake cleanly on the first insertion, and transmit current draw at PTT press registered within the expected range for this voltage class with no cutoff event recorded.
  • Contact strip prep on first install: If the charger dock shows a fault LED on first insertion, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly. The TC-500 dock requires a clean contact cycle to accept the BMS handshake before the charge cycle can begin.

Why the TC-500 cuts out mid-transmission on a new Ni-MH pack

Ni-MH cells ship at storage voltage — typically 1.1–1.2V per cell, which puts a 6V five-cell pack around 5.5–5.8V on arrival. The TC-500's BMS monitors voltage under PTT load, and if the pack hasn't been charged first, the transmit current spike can pull voltage below the cutoff threshold, dropping the transmission. This is not a faulty battery. Run a full charge cycle before the first use and the pack will hold the voltage rail through sustained PTT without dropping out.

TC-500 bar indicator showing one fewer bar than expected after swap

The TC-500 reads battery state through simple voltage-threshold steps — each bar corresponds to a voltage window, not a percentage from a fuel gauge chip. A freshly charged new pack sitting at storage voltage rather than full-charge voltage will land in a lower threshold band and display one fewer bar than the original worn pack did at "full." Charge the new pack completely in the dock, then power cycle the radio. At full charge voltage the bar indicator will reflect the correct state.

Compatible Models

TC-500 TB75 TC-500-U1 TC-500-V1 TC-500-V2 TC-446

Replaces Part Numbers

BH1104 BH1301 BH1106 BH1302

Technical Specifications

Voltage6V
Amp Hours1200mAh
Capacity1200mAh
Rate7.2Wh
Net Weight143.8g /5.07 oz
Gross Weight213.8g /7.54 oz
Approximate Weight213.8g /7.54 oz
Dimension 99.34 x 53.72 x 32.84mm

Product Highlights

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

Frequently Asked Questions

My TC-500 dock is blinking a fault LED and won't start charging the new battery — what's wrong?

The TC-500 dock checks for a minimum pack voltage before starting the charge cycle, and a new Ni-MH pack at storage voltage can sit just below that acceptance threshold. Remove the battery, wipe the gold contact strip with a dry cloth to clear any oxidation, and reseat it firmly. If the fault LED still won't clear, leave the pack in the dock for 10–15 minutes — some dock firmware will attempt a trickle pre-charge to bring the pack up to acceptance voltage before switching to normal charge mode.

The radio transmits fine at the start of a shift but drops to noticeably weaker output by midday — is this the battery?

This is voltage sag under sustained RF output load. Ni-MH cells show a gradual voltage drop as capacity depletes, and the TC-500 scales back transmit power when the supply rail falls below its lower operating threshold. A worn original pack will sag earlier and harder than a new cell. If you're seeing this on the new pack before it's been fully cycled, run three full charge-discharge cycles to condition the cells — Ni-MH cells reach rated capacity after a few conditioning cycles, not on the first use.

The new battery went into storage for a few weeks and the TC-500 won't power on at all now — is the pack dead?

Ni-MH packs self-discharge at roughly 1–3% per day at room temperature, and a pack left uncharged for several weeks can drop below the BMS recovery threshold. Place the pack in the TC-500 dock and leave it for at least 30 minutes before attempting to power the radio — the dock's pre-charge stage will recover cells down to approximately 4.0V pack voltage. If the dock accepts the pack and the charge LED activates, the cells are recovering; allow a full charge cycle to complete before use.

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