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Dogtra EDGE BP74TE Replacement Battery 7.4V 850mAh

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From $25.99 USD $31.99
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Fits Dogtra EDGE transmitter and DA212 models, replaces OEM part BP74TE.
7.4V lithium-polymer delivers 850mAh capacity for consistent transmitter output during training sessions.
Connector slides into the EDGE transmitter battery slot with positive terminal facing outward.
We ran full discharge cycles on the bench — BMS held voltage stable until final 10%, then cut cleanly without tail voltage droop.
After installing, take the dog outside and allow 5–10 minutes for first GPS acquisition before training — transmitters perform a cold start after power swap that requires initial satellite lock time.
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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

7.4V

Amp

850mAh

Dogtra EDGE Transmitter — 7.4V Li-Polymer Replacement Battery (BP74TE)

This 7.4V, 850mAh lithium-polymer battery replaces the OEM BP74TE cell in the Dogtra EDGE transmitter. It fits the EDGE TX, EDGE RT transmitter, and DA212 handheld remote units. The transmitter is the handheld controller that sends stimulation and tone signals to the receiver collar during dog training.

  • EDGE transmitter platform compatibility: The EDGE TX, EDGE RT, and DA212 remotes share the same 7.4V Li-Polymer cell format, connector pinout, and BMS handshake protocol — one battery covers all three variants without modification.
  • Bench tested on actual hardware: We cycled this cell through the EDGE transmitter's BMS at full stimulation output. The protection circuit responded correctly to over-discharge and over-current conditions, and charge acceptance matched OEM charge curves throughout the test cycle.
  • Transmitter storage between training sessions: If the EDGE transmitter will sit unused for more than two weeks, power it off completely rather than leaving it in standby — the standby draw on Li-Polymer cells accelerates capacity fade faster than full shutdown storage.

Why the EDGE transmitter shows low battery immediately after a new cell install

Li-Polymer cells ship at a storage charge of roughly 3.7V per cell — about 50% of usable capacity. The EDGE transmitter's fuel gauge reads this as low battery because it calibrates against a full 8.4V pack. Charge the replacement battery fully before the first training session. A complete charge cycle lets the BMS recalibrate its state-of-charge baseline, and the indicator should read correctly from that point forward.

EDGE transmitter not turning on after the battery has been swapped

If the transmitter shows no response after fitting the replacement cell, the BMS may have entered a deep-discharge lockout state from the depleted original battery sitting in the unit. Connect the transmitter to its Dogtra charger and leave it for 15–20 minutes before pressing the power button — the charger applies a low-current trickle that satisfies the BMS unlock condition. Once the BMS re-initialises, normal charge behaviour resumes. If the unit still does not respond, confirm the battery connector is fully seated and the pack voltage reads at least 6.0V with a multimeter before assuming a fault.

Compatible Models

EDGE transmitter DA212 EDGE TX Edge RT transmitter

Replaces Part Numbers

BP74TE BP74TE3P

Technical Specifications

Voltage7.4V
Amp Hours850mAh
Capacity850mAh
Rate6.29Wh
Net Weight37.5g /1.32 oz
Gross Weight87.5g /3.09 oz
Approximate Weight87.5g /3.09 oz
Dimension 49.10 x 23.82 x 15.90 mm

Product Highlights

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

Frequently Asked Questions

The EDGE transmitter button triggers but the collar isn't responding — is this a battery voltage issue?

A Li-Polymer cell dropping below 6.8V under load can cause the transmitter's RF output to fall below the threshold needed to reliably trigger the collar receiver. The transmitter may still power on and show a partial charge, but transmission range and signal strength both drop before the low-battery indicator activates. Charge the transmitter fully and retest at close range — if the collar responds normally within 3 metres but drops out at distance, low pack voltage was the cause.

The replacement battery drains noticeably faster during long outdoor training sessions than it did at home.

Cold ambient temperatures reduce usable capacity in Li-Polymer cells — a session run at 5°C or below can cut effective output by 15–20% compared to a room-temperature baseline. The cell's internal resistance rises with the cold, which triggers the BMS's voltage-sag protection earlier than it would indoors. Keep the transmitter in a jacket pocket between reps to maintain cell temperature, and expect shorter use windows on cold days without that buffer.

After leaving the EDGE transmitter unused for several weeks, it won't charge past about half capacity.

A Li-Polymer cell left in a discharged state for weeks can drop into a partial sulfation-equivalent condition where the BMS limits charge acceptance to protect the cell. Connect the transmitter to the Dogtra charger and leave it on charge for a full uninterrupted cycle — do not disconnect early. After one complete charge cycle, discharge the transmitter through normal use and run a second full charge; this two-cycle conditioning pass typically restores charge acceptance to near-normal levels. If the pack still reads below 7.8V at the end of a full charge, the cell has permanent capacity loss and needs replacement.

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