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Dogtra Transmitter iQ Replacement Battery BP37T 3.7V

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From $23.99 USD $29.99
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Fits Dogtra Transmitter iQ remote control with OEM part number BP37T replacement.
3.7V and 450mAh capacity deliver full transmitter output power for extended training sessions.
Connector slides into the battery slot with a flat contact orientation and positive locking tab.
We bench-tested the cell at 3.7V nominal output with stable discharge curve across load cycles.
After battery installation, take the transmitter outdoors for five minutes before the first training session — the iQ platform re-registers its wireless link to the collar receiver after power interruption.
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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

3.7V

Amp

450mAh

Dogtra Transmitter iQ Series — 3.7V Li-Polymer Replacement Battery (BP37T)

The BP37T is a 3.7V, 450mAh Li-Polymer battery for the Dogtra Transmitter iQ, iQ Plus remote transmitter, and DA210. It powers the handheld remote that sends stimulation and tone signals to compatible Dogtra collar receivers. Swap this in when the transmitter no longer holds a charge through a full training session.

  • Transmitter iQ and DA210 compatibility: These remotes share the same battery bay dimensions and the same 3.7V single-cell Li-Polymer voltage rail. The BP37T fits all of them without modification — same connector orientation, same BMS communication protocol.
  • Bench tested on actual hardware: We ran the BP37T through charge and discharge cycles on the Transmitter iQ platform. The BMS responded correctly to the charger handshake, held voltage within spec across the discharge curve, and triggered the low-cell protection cutoff cleanly at the expected threshold.
  • First charge after install: Plug the transmitter into the Dogtra charger and allow a full charge cycle to complete before pairing with a collar. The Li-Polymer cell needs one full charge to calibrate the fuel gauge indicator — partial first charges cause the battery indicator to read inaccurately during sessions.

Why the Transmitter iQ shows a full charge but dies quickly

A Li-Polymer cell that has been over-discharged loses usable capacity even after it accepts a full charge. The battery charger restores voltage to the cell, but the internal capacity is degraded — the fuel gauge reads the surface voltage, not the actual stored energy. This is why a transmitter can show full bars and then cut out after a short time in the field. The fix is a replacement cell, not a longer charge.

Transmitter iQ not turning on after the battery sits unused for weeks

Li-Polymer cells self-discharge when stored, and the Dogtra transmitter draws a small standby current even when switched off. If the cell drops below approximately 2.5V, the BMS enters deep-discharge lockout and the transmitter will not power on. Plug it into the Dogtra charger and leave it connected for at least 30 minutes — the charger's trickle stage will bring the cell back above the BMS re-enable threshold. If the transmitter still does not power on after 30 minutes on charge, the cell is below recovery voltage and needs replacing.

Compatible Models

Transmitter iQ iQ transmitter DA210 iQ plus remote transmitter

Replaces Part Numbers

BP37T

Technical Specifications

Voltage3.7V
Amp Hours450mAh
Capacity450mAh
Rate1.67Wh
Net Weight11g /0.39 oz
Gross Weight36g /1.27 oz
Approximate Weight36g /1.27 oz
Dimension 40.57 x 24.62 x 6.40mm

Product Highlights

  • Brand: Dogtra
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The transmitter iQ worked fine, then I put it away for a month and now it won't turn on at all — is the battery dead?

Most likely yes. Li-Polymer cells self-discharge in storage, and the Dogtra transmitter draws a small standby current even when off. If the cell voltage drops below roughly 2.5V, the BMS locks out and the unit won't respond to the power button. Plug it into the Dogtra charger for at least 30 minutes — if it still won't power on after that, the cell is past recovery voltage and the battery needs replacing.

The transmitter shows full battery bars right after charging but the indicator drops fast once I start a training session — what's happening?

The fuel gauge in the Transmitter iQ reads cell voltage, not actual stored energy. A worn Li-Polymer cell recovers surface voltage after a charge cycle, so it looks full, but usable capacity is significantly lower than a new cell. The voltage sags quickly under the RF transmission load, which the fuel gauge then reads as a rapid drop. Replacing the BP37T cell is the fix — reconditioning or longer charging won't restore lost capacity.

I replaced the battery in my iQ transmitter but the collar isn't responding to button presses — did something go wrong during the swap?

The collar and transmitter need to re-establish their link after the transmitter loses power. Power cycle both the transmitter and collar, then run through the Dogtra pairing sequence — hold the transmitter's Nick button while powering on the collar until the receiver LED confirms sync. If the collar still doesn't respond after pairing, check that the transmitter is fully charged above 3.7V, since low voltage can prevent the RF module from transmitting at full output.

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Dogtra Transmitter iQ Replacement Battery, 3.7V, 450mAh, Li-Polymer 1

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