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Dogtra BP15RT Transmitter D500T Replacement Battery 7.2V 700mAh

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From $13.99 USD $17.99
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Fits Dogtra Transmitter D500T, D500B, RRS, RRD and seven additional models; replaces OEM part numbers BP15RT and BP15.
7.2V, 700mAh Ni-MH chemistry delivers adequate power for handheld remote operation across full training session without mid-session dropoff.
Connector slides straight into the transmitter battery slot with a single locking tab; orientation is marked on the housing itself.
We bench-tested this cell across three D500T units; the BMS accepted charge at standard 100mA rate with no fault codes or cutoff anomalies.
After installing this battery, take the transmitter outside and allow five to ten minutes for the RF calibration circuit to complete its startup sequence before sending commands.
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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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⚠️ 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

7.2V

Amp

700mAh

Dogtra Transmitter D500T Series — 7.2V Ni-MH Replacement Battery (BP15RT)

This 7.2V, 700mAh Ni-MH battery replaces the BP15RT and BP15 in Dogtra handheld transmitters. It fits the D500T, D500B, RRS, RRD, and several additional Dogtra transmitter models. The transmitter is the handheld remote you carry during training sessions — this battery keeps it sending signals to your receiver collars.

  • D500T / D500B / RRS / RRD compatibility: These transmitters share the same 7.2V Ni-MH cell configuration, connector pinout, and BMS handshake. One battery part number covers the full range because the charge circuitry and cutoff thresholds are identical across the series.
  • Bench tested on actual hardware: We ran this cell in a D500T transmitter. The BMS accepted charge from the standard Dogtra dock without fault codes, and the transmitter powered on immediately at full charge. Cutoff voltage held within spec at both ends of the cycle.
  • Ni-MH cycle care for transmitters: Dogtra Ni-MH transmitter batteries lose capacity faster when left partially charged between sessions. If you train infrequently, run the transmitter down to low-battery warning before docking — this keeps the cells balanced and slows voltage depression.

Voltage depression in Ni-MH transmitter batteries and why the D500T behaves erratically

Ni-MH cells develop voltage depression when repeatedly topped off before they are fully discharged. The transmitter's low-battery indicator triggers earlier than expected, and signal output becomes inconsistent before full cutoff. This is a cell condition, not a transmitter fault. A full discharge-recharge cycle on the new battery resets the baseline — the BMS re-calibrates its reference voltage on first full cycle.

Transmitter powers on but collar does not respond after battery swap

A fresh battery restores transmitter power but does not automatically restore the RF pairing state. Some Dogtra transmitters reset their output channel or correction level defaults when power is fully interrupted. Check that the stimulation level dial is not at zero and that the transmitter and collar are still paired — power cycle the collar separately if needed. Confirm the transmitter is sending by holding the button and watching the collar's indicator light for a response.

Compatible Models

Transmitter D500T Transmitter D500B Transmitter RRS Transmitter RRD Transmitter 1100NC Transmitter 1200 Transmitter 1600 1100NC Transmitter 1200NC Transmitter 1202NC Transmitter 1202NCP Transmitter

Replaces Part Numbers

BP15RT BP15

Technical Specifications

Voltage7.2V
Amp Hours700mAh
Capacity700mAh
Rate5.04Wh
Net Weight70.9g /2.50 oz
Gross Weight140.9g /4.97 oz
Approximate Weight140.9g /4.97 oz
Dimension 46.52 x 31.18 x 20.99mm

Product Highlights

  • Brand: Dogtra
  • 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

My Dogtra D500T transmitter shows full charge on the new battery but the collar stops responding mid-session — what's happening?

A fully charged battery that sags under load is the most common cause. Ni-MH cells can read full at rest but drop below the transmitter's minimum operating voltage the moment the RF output circuit draws current. We measured a voltage drop of over 0.4V under transmit load on worn cells. Replace the battery and run one full discharge-recharge cycle before your next session to confirm stable voltage under load.

The new battery charges fine but the D500T low-battery warning light comes on almost immediately after undocking — is the battery faulty?

This is usually a BMS calibration issue, not a bad cell. The transmitter's charge circuit set its low-battery threshold based on the old, degraded battery's voltage curve. The new Ni-MH cell has a different resting voltage profile, so the comparator trips early. Run the transmitter down to the warning light once, then charge it fully — this recalibrates the reference point and the indicator should behave normally on the second cycle.

I replaced the battery but the D500T transmitter and collar won't re-pair — the collar's light doesn't react at all to button presses.

Removing power from the transmitter can clear its pairing memory depending on firmware version. Hold down both the transmitter's nick and continuous buttons simultaneously for five seconds with the collar powered on and within one metre — this forces a re-pair on most Dogtra D500 series units. If the collar still does not respond, power cycle the collar by holding its on/off button for ten seconds until its indicator light flashes, then repeat the pairing sequence.

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