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Radiodetection RD8000 Compatible Battery 3.7V 10400mAh

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From $70.99 USD $87.99
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Fits Radiodetection RD8000, RD8100, and RD7000+ locators; replaces OEM part 09/ER3223Z13.
3.7V, 10400mAh Li-ion cell sustains probe operation through full survey sessions without mid-measurement cutoff.
Slides into battery slot with spring-loaded contact frame; connector orientation marked on housing.
Bench test showed stable voltage delivery under sustained probe current draw with no BMS dropout.
After installation, power on the locator and run the self-test from the main menu — the instrument calibrates battery voltage mapping during this cycle, preventing false low-battery warnings during fieldwork.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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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.

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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

10400mAh

Radiodetection RD8000 Series — 3.7V Li-ion Replacement Battery (09/ER3223Z13)

This 3.7V, 10400mAh Li-ion battery replaces the OEM pack in the Radiodetection RD8000, RD8100, RD7000+, and associated Pipe and Marker Locator variants. It fits the standard battery bay and connects via the original multi-pin interface. Capacity figures are taken directly from product data — 38.48Wh total energy.

  • RD8000 / RD8100 / RD7000+ platform fit: These models share the same 3.7V single-cell architecture, bay dimensions, and BMS handshake protocol. One pack covers the full locator family without modification.
  • Bench tested on actual hardware: We ran this pack through the RD8000 power-on sequence and active signal-tracing load. The BMS negotiated correctly, held voltage under sustained transmitter and receiver draw, and did not trigger a low-voltage cutoff during signal lock.
  • Post-install calibration on RD8000 / RD8100: After fitting this pack, run a full calibration cycle through the instrument menu before field deployment. The RD8000 maps battery state during calibration — skipping it causes premature low-battery warnings during your first locating session, even with a full charge.

BMS lockout after the RD8000 sat unused in a carry case for months

Li-ion cells self-discharge during storage. If the RD8000 pack drops below approximately 2.5V per cell, the BMS trips a protection latch and blocks charge input entirely — the charger sees the pack as absent. This is a safety state, not cell failure. To recover, apply a low-current trickle charge at around 0.1C for 15–30 minutes to lift cell voltage above the BMS recovery threshold, typically 3.0V, then switch to standard charge. Most quality chargers with a recovery or "wake" mode handle this automatically.

RD8000 display showing erratic battery percentage immediately after fitting a new pack

The RD8000 uses a voltage-threshold method to estimate charge state. A new cell has a slightly different discharge curve than the degraded pack it replaced, so the instrument's indicator recalibrates over the first full charge-discharge cycle. The percentage readout will stabilise after one complete cycle — charge to 100%, run the instrument through a normal locating session to drawdown, then recharge fully. After that cycle, the display tracks accurately.

Compatible Models

RD8000 RD8100 Pipe Locators and RD7000+ RD8000 Marker Locators RD8100 Cable RD7100 RD7000 RD7100 Cable RD8200 Marker Locator

Replaces Part Numbers

09/ER3223Z13 4LI-18650-1S4P-R1

Technical Specifications

Voltage3.7V
Amp Hours10400mAh
Capacity10400mAh
Rate38.48Wh
Net Weight191g /6.74 oz
Gross Weight261g /9.21 oz
Approximate Weight261g /9.21 oz
Dimension 70.00 x 40.00 x 40.00mm

Product Highlights

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

Frequently Asked Questions

The RD8000 powers on fine but shuts off the moment I start a USB data transfer to the PC — is the battery faulty?

This is a combined-load issue, not a faulty pack. USB data transfer runs simultaneously with the active display, processor, and any connected probe — the total draw spikes above what a degraded or partially charged cell can sustain, and the BMS cuts output to protect the cells. Charge the pack fully before attempting a transfer session and confirm cell voltage is at or above 4.1V before connecting the USB cable. If the problem persists on a full charge, the original pack's cells have degraded below usable capacity and the replacement pack will resolve it.

My RD8000 readings drift and reset mid-logging session even though the battery indicator shows plenty of charge left.

The battery percentage indicator on the RD8000 is voltage-based and reads the resting cell voltage — it does not account for voltage sag under sustained sensor load. During a long logging session, the cell voltage can sag enough under continuous draw to trigger a BMS undervoltage event, causing the instrument to reset, even though it reads 40–50% on the indicator. This is a sign the existing cells can no longer hold voltage under load and the pack needs replacement. Fit the new pack and run the post-install calibration cycle through the instrument menu before your next field session.

The RD8000 won't accept a charge after storage — the charger light stays green as if the pack is already full.

The pack has likely entered BMS deep-discharge lockout. When cell voltage drops below roughly 2.5V from prolonged storage, the BMS blocks normal charge input as a protection measure — the charger detects no load and signals "complete." Use a charger with a trickle or recovery mode to deliver a low-current pre-charge until cell voltage climbs back above 3.0V. Once the BMS releases the latch, switch to standard charge and the pack will cycle normally from that point.

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