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SanDisk Sansa Clip Zip Compatible Battery 3.7V 260mAh

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From $22.99 USD $28.99
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Fits SanDisk Sansa Clip Zip, Clip+, and Clip Plus models; replaces OEM part PR-303038PL.
3.7V, 260mAh lithium-polymer cell delivers 0.96Wh for extended playback on this compact player.
Connector slides straight into the battery slot with a simple friction fit; no locking tab.
We bench-tested the BMS on a Clip Zip unit; the cell accepted charge current without fault codes.
After installation, connect the charger and wait 30 minutes before powering on—the Clip Zip enters deep discharge protection after storage and needs a slow trickle cycle to accept normal charge current.
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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

3.7V

Amp

260mAh

SanDisk Sansa Clip Zip / Clip+ — 3.7V Li-Polymer Replacement Battery (PR-303038PL)

This is a 3.7V, 260mAh lithium-polymer battery for the SanDisk Sansa Clip Zip and Sansa Clip+ (Clip Plus) portable media players, including the SDMX18R-008GK-A57. It matches the original PR-303038PL cell at 36.45 x 30.75 x 3.20mm — a precise physical fit inside the compact housing.

  • Clip Zip and Clip+ compatibility: Both players share the same internal battery bay dimensions, connector polarity, and 3.7V nominal voltage rail. A single cell revision covers the full range of these models without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on a Clip Zip unit. The BMS accepted charge current without fault codes, and the protection circuit tripped correctly at the low-voltage cutoff threshold before any cell damage could occur.
  • Post-swap charging protocol for the Clip Zip: After installing a new cell, connect the player to a charger before attempting to power it on. The Clip Zip's firmware can misread a fresh cell's resting voltage and refuse to boot. A 30-minute pre-charge clears that state.

Battery percentage jumping after a cell swap on the Clip Zip

The Sansa Clip Zip uses a voltage-threshold method to estimate charge level — it has no dedicated fuel gauge IC. After a cell swap, the firmware's stored reference points no longer match the new cell's discharge curve. You'll see the indicator jump between 100% and a lower value in the first few cycles. Run two or three full charge-to-cutoff cycles and the displayed percentage stabilises against the new cell's actual voltage behaviour.

Playback cutting out before the battery indicator shows empty

The Clip Zip's audio amplifier draws a brief current spike during output, which causes voltage to sag at the end of a discharge cycle. When the cell is nearly depleted, that sag briefly dips below the BMS cutoff threshold and the player shuts down — even though the indicator hasn't reached zero. This is a protection cut, not a faulty battery. Charge the unit immediately and the cell will recover. If cutouts begin happening much earlier in the cycle, the cell has aged past its usable capacity.

Compatible Models

Sansa Clip Zip Sansa Clip+ Clip Plus SDMX18R-008GK-A57 SDMX18R-004GB-A57 SDMX18R-004GR-A57 SDMX18R-004GI-A57 SDMX18R-004GK-A57

Replaces Part Numbers

PR-303038PL

Technical Specifications

Voltage3.7V
Amp Hours260mAh
Capacity260mAh
Rate0.96Wh
Net Weight6.2g /0.22 oz
Gross Weight31.2g /1.10 oz
Approximate Weight31.2g /1.10 oz
Dimension 36.45 x 30.75 x 3.20mm

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 Clip Zip won't turn on at all after sitting in a drawer for months — is the battery dead?

Extended storage can push a lithium-polymer cell below the BMS's recovery threshold, locking it in deep-discharge protection. Connect the player to a charger and leave it for at least 30 minutes before pressing the power button — the trickle stage has to bring the cell voltage back above roughly 3.0V before the device will respond. If the player still won't boot after a full charge cycle, the original cell has likely degraded past recovery and needs replacing.

The battery percentage on my Clip Zip jumps around erratically right after I installed the new cell — did I get a faulty battery?

The Clip Zip estimates charge level using fixed voltage thresholds, not a fuel gauge chip. After a cell swap, the firmware's reference points are out of sync with the new cell's discharge curve, so the indicator behaves erratically in early cycles. Run two or three complete charge-to-cutoff cycles without interruption and the displayed percentage will settle into accurate readings.

My Clip Zip powers off mid-song even though the battery bar still shows charge remaining — what's happening?

Near the end of a discharge cycle, the audio amplifier's current draw causes a momentary voltage sag on the cell. If that sag dips below the BMS low-voltage cutoff, the player shuts off as a protection measure before the indicator visually reaches empty. Plug the unit in immediately after it cuts out — the cell recovers quickly once charging starts. If this is happening well before the indicator looks low, run a full charge cycle and check whether the cutout point moves; if it doesn't, the cell has aged and needs replacement.

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