Philips PageWriter TC50 ME202C 10.8V Replacement Battery
This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.
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Philips PageWriter TC50 ME202C 10.8V Replacement Battery - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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.
Disclaimer
Disclaimer
⚠️ 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.
Philips PageWriter TC50 ME202C 10.8V Replacement Battery - is backordered and will ship as soon as it is back in stock.
Voltage
10.8V
Amp
7800mAh
Philips PageWriter TC50 — 10.8V Li-ion Replacement Battery (ME202C)
This 10.8V, 7800mAh Li-ion battery replaces the ME202C cell in the Philips PageWriter TC50 portable 12-lead ECG machine. It fits the TC50 directly and matches the original voltage rail and connector. Capacity figures come from the product data — 84.24Wh total energy.
- PageWriter TC50 platform fit: The TC50 uses a dedicated battery bay with a BMS handshake that validates cell chemistry and voltage on every boot. This replacement cell meets the voltage and communication requirements that trigger a clean self-test result at startup.
- Bench tested on actual hardware: We cycled this cell through the TC50's boot sequence and monitored the BMS handshake. The charge controller accepted the cell without fault codes, and the self-test completed cleanly on the second full charge cycle.
- Post-swap startup protocol: After installing this battery, let the TC50 complete its full power-on self-test without interruption. The device runs a BMS verification routine at startup — cutting power during this window logs a false battery fault that persists until the next full reboot.
Why the TC50 flags a battery fault after the first charge cycle
The PageWriter TC50's charge IC applies a conservative current limit on cells it hasn't profiled yet. On the first charge, the controller may cap charge acceptance below the OEM threshold, triggering a fault flag even when the cell itself is healthy. This is a BMS learn-cycle behaviour, not a defective cell. Running one complete charge-to-discharge-to-full-recharge cycle lets the controller build an accurate capacity profile. After that cycle, the fault flag clears and the charge indicator reads correctly.
Charge indicator stuck below 100% after first full charge
New Li-ion cells have a slightly higher internal resistance than a broken-in cell. The TC50 charge IC reads this resistance and interprets it as reduced capacity, capping the reported state-of-charge at around 85–90% on the first charge. This is a measurement artefact, not an actual capacity shortfall. Complete one full discharge to the device's auto-shutoff point, then recharge to 100% — the charge IC recalibrates its resistance model and the indicator reaches full on the next cycle.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Philips
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
The TC50 is alarming low battery immediately after I pulled it off the charger — the cell charged for hours and the indicator showed full. What's happening?
The TC50's BMS compares the new cell's resting voltage against a threshold calibrated to an OEM-profiled cell. A fresh replacement cell hasn't completed a learn cycle, so the BMS flags it as low even at a full state-of-charge. This clears after one complete charge-discharge-recharge cycle. Charge the battery fully, run the device until it auto-shuts off, then recharge to 100% — the alarm does not reappear after that cycle.
The TC50 won't power on at all after the replacement battery sat unused for several months before installation — the device shows nothing, not even a boot screen.
Li-ion cells self-discharge in storage, and if the resting voltage drops below roughly 2.5V per cell the TC50's BMS trips a deep-discharge lockout and blocks power delivery entirely. Connect the device to mains power first and leave it on the charger for at least 90 minutes before attempting to power on — the charge IC applies a low-current recovery charge that brings the cell above the BMS recovery threshold. Once the cell reaches approximately 3.0V per cell, the lockout releases and the device boots normally.
The TC50 shuts off without warning during patient exams — the battery indicator shows adequate charge right before it drops out. What causes this mid-use cutoff?
In the first 10 charge cycles, new Li-ion cells show higher voltage sag under load than a broken-in cell. The TC50 applies a sustained current draw during active ECG acquisition, and that load pulls the cell voltage below the BMS cutoff threshold momentarily — even when the resting state-of-charge reads normal. The BMS interprets this sag as a depleted cell and cuts power as a protection measure. The drop-outs reduce significantly after the cell completes 8–10 full cycles; until then, keep the device on mains power during extended recording sessions where possible.
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