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Vetronix 8489 7.2V Ni-MH Compatible Battery 2000mAh

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From $37.99 USD $46.99
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Fits Vetronix 03006735 engine analyzer and diagnostic tools; replaces OEM part 8489 and B11543.
7.2V 2000mAh Ni-MH delivers stable voltage across extended measurement sessions without the voltage sag that causes mid-test shutdowns.
Connector slides straight onto the battery contact block with a single locking tab that seats flush against the instrument housing.
We bench-tested this pack in a Vetronix diagnostic unit across full sensor initialization and sustained logging cycles; BMS held voltage steady through probe power-up spikes.
Before field deployment, run a full calibration cycle through the instrument menu — the device maps battery state during calibration and skipping this step triggers false low-battery warnings mid-measurement.
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.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

7.2V

Amp

2000mAh

Vetronix MTS 5200 / 03006735 — 7.2V Ni-MH Replacement Battery (8489)

This is a 7.2V 2000mAh Ni-MH replacement battery for the Vetronix MTS 5200 and 03006735 diagnostic and measurement instruments. It also fits the Engine Analyser and F00E900018 units that share the same battery bay and connector. OEM part numbers 8489 and B11543 both cross-reference to this pack.

  • MTS 5200 and 03006735 platform fit: These models share a common 7.2V cell stack, identical connector pinout, and the same BMS handshake sequence, so one pack covers the full platform without adapter wiring.
  • Bench tested on actual hardware: We cycled this pack through the MTS 5200 charge and measurement sequence. The BMS handled probe initialisation current without tripping, and the instrument accepted the pack's state-of-charge signal without throwing a battery fault code.
  • First-use calibration on the MTS 5200: After installing this pack, run a full calibration cycle through the instrument menu before field deployment. The instrument maps battery state during calibration — skipping this step causes premature low-battery warnings during your first measurement session.

BMS lockout after the MTS 5200 sat unused in a carry case for months

Ni-MH cells self-discharge during storage, and if the pack drops below roughly 5.0V total, the BMS enters a protective lockout state. In this condition the instrument either shows no battery icon or refuses to power on at all. A standard charger will not recover the pack from this state because it detects zero current draw and assumes a fault. To recover, place the pack on a Ni-MH charger with a conditioning or recovery mode — this applies a low trickle current to bring cell voltage back above the BMS wake threshold before attempting a full charge.

Readings resetting or dropping during a sustained logging session

When the instrument runs a long sensor logging sequence, the combined draw from the probe module and data processing can pull pack voltage down sharply under load. If cell voltage dips below the instrument's cutoff threshold mid-session, the MTS 5200 resets the active measurement rather than saving it. This is not a faulty pack — it is a sign the cells have capacity-faded past the point where sustained load is manageable. Confirm cell health by checking resting voltage after a full charge: a healthy 7.2V Ni-MH pack should read 8.4–8.6V at rest within 15 minutes of leaving the charger.

Compatible Models

03006735 Engine Analyaer F00E900018 MTS 5200

Replaces Part Numbers

8489 B11543

Technical Specifications

Voltage7.2V
Amp Hours2000mAh
Capacity2000mAh
Rate14.4Wh
Net Weight170g /6.00 oz
Gross Weight310g /10.93 oz
Approximate Weight310g /10.93 oz
Dimension 150.39 x 30.64 x 17.18mm

Product Highlights

  • Brand: Vetronix
  • 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 Vetronix MTS 5200 shuts off the moment I connect a probe — fully charged battery, happens every time.

The probe initialisation draws a short current spike that can trip the BMS on a worn or recently installed pack before the cells settle. On a new pack, this usually clears after one or two full charge-discharge cycles as the cells balance. If it persists, check that the battery contacts in the instrument bay are clean and making firm contact — a resistive connection amplifies the voltage drop at that spike. Run the calibration cycle through the instrument menu after the second full charge cycle to let the instrument re-map the pack's response.

The MTS 5200 powers on fine but freezes or disconnects mid-transfer when I push data to a PC via USB.

USB data transfer adds a second load path on top of the instrument's own processor draw. If the pack has any capacity fade, the combined current pulls cell voltage below the instrument's operating threshold and the transfer aborts. The fix is to keep the instrument on charge during USB transfers — the charger holds the voltage rail stable while the PC communication runs. If the instrument does not support charge-and-transfer simultaneously, confirm resting pack voltage is above 8.4V before starting a transfer session.

The battery percentage on the MTS 5200 display jumps around after I fit a new pack — shows 80%, then 40%, then 100% within minutes.

This is the instrument's voltage-threshold indicator recalibrating to the new cell's discharge curve — it has not yet mapped where the new pack's voltage sits at each state of charge. Run two full charge and discharge cycles through normal instrument use without interrupting them. After the second cycle, the display stabilises because the instrument has logged enough voltage-versus-load data points to report state of charge accurately.

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