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SanDisk Sansa Clip Sport Replacement Battery 3.7V 220mAh

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From $21.99 USD $27.99
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Fits SanDisk Sansa Clip Sport media player, replaces OEM part SDMX24.
3.7V at 220mAh delivers enough capacity for full playback sessions on this compact portable player.
Connector slides straight into the original battery slot with no tabs or locking mechanisms required.
We bench-tested this cell in the Clip Sport; the BMS accepted charge current immediately with no protection delays.
After installation, connect the charger and let it sit for thirty minutes before powering on—the player enters deep-discharge protection after storage that needs a slow trickle to reset.
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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

220mAh

SanDisk Sansa Clip Sport — 3.7V Li-Polymer Replacement Battery (SDMX24)

This 3.7V, 220mAh lithium-polymer battery is a direct replacement for the SanDisk Sansa Clip Sport portable media player (SDMX24). It restores the device's ability to hold a charge after the original cell degrades from repeated charge cycles. Dimensions are 32.35 × 24.80 × 3.60mm — verify against your existing cell before installing.

  • Sansa Clip Sport compatibility: The SDMX24 platform runs a single-cell Li-Polymer rail at 3.7V nominal. All Clip Sport units share the same connector pinout and BMS handshake, so this cell fits across the Clip Sport lineup without modification.
  • Bench tested on actual hardware: We ran this cell on the Clip Sport board and confirmed the BMS accepted the new cell without triggering a protection lockout. Voltage at delivery measured within the expected 3.6–3.85V shipping range.
  • Post-swap charge cycle: After installing, connect the Clip Sport to its charger and leave it for a full charge before powering on. Media players store in a discharged state, and the BMS may need a slow trickle input before it accepts normal charge current — skipping this step can cause the device to appear dead even with a good cell fitted.

Battery percentage jumping after cell swap on the Clip Sport

The Clip Sport's fuel gauge reads battery state by tracking voltage thresholds, not true coulomb counting. After a cell swap, the firmware's stored voltage curve no longer matches the new cell's actual discharge profile. This causes the indicator to jump — sometimes from 80% to 20% in a single track. Run two or three full charge-to-discharge cycles and the gauge will recalibrate to the new cell's curve.

Playback cutting out before the battery indicator shows empty

At the tail end of a Li-Polymer discharge curve, cell voltage drops sharply. The Clip Sport's audio amplifier pulls enough current during playback that this voltage sag trips the under-voltage cutoff before the display gauge reaches zero. This is a BMS protection response, not a faulty cell. Charge the device and confirm the resting voltage sits at or above 3.7V before the next use.

Compatible Models

Sansa Clip Sport

Replaces Part Numbers

SDMX24

Technical Specifications

Voltage3.7V
Amp Hours220mAh
Capacity220mAh
Rate0.81Wh
Net Weight5g /0.18 oz
Gross Weight30g /1.06 oz
Approximate Weight30g /1.06 oz
Dimension 32.35 x 24.80 x 3.60mm

Product Highlights

  • Brand: SanDisk
  • 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

My Sansa Clip Sport won't turn on at all after sitting in a drawer for months — is the new battery dead too?

It's almost certainly deep discharge protection, not a dead cell. When a Li-Polymer cell drops below roughly 2.5V, the BMS locks output until it receives a trickle charge input. Connect the Clip Sport to its charger and leave it untouched for 30 minutes before attempting to power it on — the BMS needs that slow initial current to release the lockout and allow normal operation.

The battery percentage on my Clip Sport jumps around wildly after I replaced the cell — what's causing that?

The Clip Sport estimates charge level by reading cell voltage against a stored threshold table. A new cell's voltage curve doesn't match the old one the firmware calibrated to, so the readout skips around until it relearns. Run three complete charge-to-discharge cycles without interrupting them partway through, and the gauge will settle to accurate readings.

My Clip Sport cuts out mid-track even though the battery icon still shows charge remaining — what's happening?

The audio amplifier draws enough current at the end of the discharge curve to cause a sharp voltage sag in the cell. When voltage dips below the BMS under-voltage threshold — typically around 3.0V — it cuts output to protect the cell, even if the display still shows bars. Charge the device fully and check that resting voltage is at or above 3.7V; if cutouts happen early in a charge cycle, the cell may not have completed its initial recalibration cycles.

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SanDisk Sansa Clip Sport Replacement Battery, 3.7V, 220mAh, Li-Polymer 1

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