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Schenker S1 Plus Replacement Battery 11.55V 7800mAh

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From $122.99 USD $147.99
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Fits Schenker S1 Plus and VIA 15 notebooks; replaces OEM part numbers BATRPFIDG3-6102, PFIDG-00-13-3S2P-0, and PFIDG-03-17-3S2P-0.
11.55V 7800mAh Li-Polymer cell delivers 90.09Wh; this capacity matches original output for full session runtime without power loss.
Connector seats flush into the S1 Plus battery slot with positive contact and mechanical locking tab; dimensions 287.60 x 97.30 x 9.50mm confirm OEM fit.
We ran charge and load cycles on a test S1 Plus; BMS accepted the cell on first insertion with no fault codes and held voltage stable under CPU and display load.
After installation, run one full discharge to system sleep then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears incorrect health warnings.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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

11.55V

Amp

7800mAh

Schenker S1 Plus / VIA 15 — 11.55V Li-Polymer Replacement Battery (BATRPFIDG3-6102)

This is an 11.55V 7800mAh (90.09Wh) Li-Polymer replacement battery for the Schenker S1 Plus and VIA 15 notebooks. It replaces OEM part numbers BATRPFIDG3-6102, PFIDG-00-13-3S2P-0, and PFIDG-03-17-3S2P-0. It restores unplugged operation on laptops where the original cell has degraded or failed completely.

  • S1 Plus and VIA 15 compatibility: Both models share the same 3S2P cell configuration, connector pinout, and BMS handshake protocol — which is why these OEM part numbers cross-reference across both platforms. The battery management system talks to the same EEPROM interface on each chassis.
  • Bench tested on actual hardware: We cycled this cell through full charge and discharge on a representative platform, confirming the BMS negotiated correctly, charge current tapered at the expected threshold, and no protection trips occurred during load transitions.
  • Post-install calibration on the S1 Plus and VIA 15: After fitting this cell, run one full discharge down to hibernate cutoff, then charge uninterrupted to 100% before unplugging again. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on these Schenker models.

Why the S1 Plus shuts down at 20–30% remaining after a battery swap

The fuel gauge IC on the S1 Plus measures remaining capacity by tracking voltage curves calibrated to the original cell's discharge profile. A new cell has a slightly different curve, so the IC hits its low-voltage threshold earlier than the percentage shown on screen suggests. The laptop interprets that voltage floor as a system-critical cutoff and shuts down immediately. Running two or three full discharge-to-hibernate cycles lets the gauge IC re-map against the new cell's actual curve and eliminates the premature cutoff.

BIOS reporting battery health as "poor" or "replace soon" after fitting a new cell

This warning comes from EEPROM data the BIOS carried over from the degraded original cell — it does not reflect the new cell's actual condition. The BIOS battery learn cycle has not yet run against the replacement, so the stored charge-cycle count and capacity estimate are still tied to the old unit. Perform the calibration cycle described above: full discharge to hibernate cutoff, then a single uninterrupted charge to 100%. After that cycle completes, the BIOS re-reads the battery data and the warning clears.

Compatible Models

S1 Plus VIA 15

Replaces Part Numbers

BATRPFIDG3-6102 PFIDG-00-13-3S2P-0 PFIDG-03-17-3S2P-0

Technical Specifications

Voltage11.55V
Amp Hours7800mAh
Capacity7800mAh
Rate90.09Wh
Net Weight350g /12.35 oz
Gross Weight610g /21.52 oz
Approximate Weight610g /21.52 oz
Dimension 287.60 x 97.30 x 9.50mm

Product Highlights

  • Brand: Schenker
  • 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 Schenker S1 Plus shows the battery as 0% or "unknown" straight after fitting the new cell — is it faulty?

It is not faulty. The BIOS is still reading EEPROM state data from the previous cell and has not yet initialised against the new one. Connect the charger, let it reach 100% without interruption, then discharge fully to hibernate cutoff. After one complete cycle the BIOS re-initialises the battery register and the gauge reads correctly.

The system info screen shows the wrong Wh rating — it says 70Wh but the battery is rated 90.09Wh. Why?

The Wh figure displayed in Windows or the BIOS is pulled from the EEPROM on the cell, which stores the manufacturer's rated design capacity rather than the actual chemistry value of the replacement. The two numbers reference different calculation points and both can be technically correct for their respective sources. The discrepancy does not affect charging behaviour or available capacity. Confirm the physical label on the battery reads 90.09Wh — if it does, the cell is correct and no action is needed.

Charging stops at 80% and will not go higher — is the charger or the new battery causing this?

This is almost always a BIOS-controlled charge limit, not a battery or charger fault. Schenker notebooks expose a charge threshold setting in the BIOS or via the Control Center software that caps charging at 80% to reduce cell stress during mains-connected use. Check BIOS under the Power or Battery section and set the upper charge limit to 100%. Save and reboot — the next charge cycle will continue past 80%.

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