Zebra TC20 Replacement Battery 3.85V 2700mAh Li-ion
This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.
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Zebra TC20 Replacement Battery 3.85V 2700mAh Li-ion - 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.
Zebra TC20 Replacement Battery 3.85V 2700mAh Li-ion - is backordered and will ship as soon as it is back in stock.
Voltage
3.85V
Amp
2700mAh
Zebra TC20 / TC25 Series — 3.85V Li-ion Replacement Battery (BTRY-TC2X-INT1-01)
This 3.85V 2700mAh Li-ion battery replaces the internal pack in the Zebra TC20, TC25, and TC200J mobile computers. These are rugged handheld barcode scanners used in retail, warehousing, and logistics. It matches OEM part numbers BT-000334, BT-000334-1, and BTRY-TC2X-INT1-01.
- TC20, TC25, and TC200J compatibility: All three models share the same battery bay geometry, contact layout, and BMS handshake protocol — the TC2X platform was built around a single unified power rail at 3.85V, so one pack covers the entire family without adapters or firmware changes.
- Bench tested on actual hardware: We cycled this pack through the TC20's charge management IC and confirmed the BMS negotiated correctly at both the dock contact and the device-side fuel gauge — no false low-battery flags appeared during sustained scan bursts.
- First-shift cradle protocol: After installing, seat the scanner in its four-pin charging cradle for a full charge cycle before deploying on a pick-and-pack shift. The scan trigger inrush current peaks when the cell is near minimum charge; a fully conditioned pack prevents false BMS cutoff trips on the first scan burst of the day.
Cradle showing charging error on a fresh pack
The TC20's four-pin dock uses contact resistance to validate the pack before beginning a charge cycle. Oxidation or debris on the gold contacts — on either the battery or the cradle — raises resistance above the dock's threshold and triggers a charging fault LED. Wipe the battery contacts with a dry cloth and reseat the unit firmly into the cradle. If the error clears on the second attempt, the contacts were the cause, not the pack or the dock hardware.
Scanner losing wireless connection during rapid scan bursts
The TC20 runs both its 802.11 radio and its imager simultaneously during high-frequency scanning. Combined draw from the radio polling cycle and the imager power spike can pull cell voltage below the BMS's radio-priority threshold, causing the wireless stack to drop. This happens most often when the pack is below 20% state of charge. Keep the pack above 30% during high-volume shifts and the radio connection will hold through continuous scan sequences.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Zebra
- 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 TC20 scans fine after a fresh charge but stops reading barcodes after a few hours — why?
The TC20's imager draws a short power spike every time the trigger is pulled. As the cell depletes, voltage sag during each scan spike can drop below the imager's minimum operating threshold, causing missed reads even though the device still appears on. This isn't a scanner fault — it's the cell losing its ability to hold voltage under inrush load as capacity fades. Replace the pack and the read failures will stop appearing mid-shift.
My TC20 feels noticeably warm after a full warehouse shift — is that a battery problem?
Sustained combined draw from the 802.11 radio, the imager, and the processor in an enclosed plastic housing generates heat that the TC20 has limited ability to dissipate. A degraded cell running at higher internal resistance adds to that heat load. If the unit is warm to the touch but not hot, that's normal for extended shifts. If it's uncomfortably hot at the battery cover, check the cell's resting voltage after a full charge — a healthy Li-ion pack should read at or above 4.10V at rest.
The TC25 shows a full charge icon but runs out of power well before the previous battery did — what changed?
The TC25's fuel gauge reads state of charge from a coulomb counter inside the BMS. A new pack needs one full discharge and recharge cycle for the fuel gauge to calibrate its baseline capacity reading accurately. After the first full cycle, the icon and the actual remaining capacity should align. If short shift endurance continues after two full cycles, verify the dock contacts are clean — poor contact during charging means the pack never reaches a true 100% state of charge even when the icon says otherwise.
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