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Ecovacs Deebot T8 14.4V Replacement Battery S10-Li-144-5200

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From $75.99 USD $93.99
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Fits Ecovacs Deebot T8, T8AIVI, T8+, T8 Aivi Max Power, and 66+ variants; replaces OEM part numbers S10-Li-144-5200, 201-1913-4201, S10-Li-144-6800, 201-1913-4200, 201-1913-420, 10002644, 201-2102-24Q5, 201-2353-1097.
14.4V 6400mAh lithium-ion pack delivers 92.16Wh to sustain motor torque and navigation cycles across carpet and hard floors without voltage sag.
Connector slides into the battery slot on the dustbin assembly; locking tab engages at a quarter-turn clockwise until the release button seats flush.
Bench testing showed BMS accepted full charge cycle without fault codes; cell groups balanced within 30mV at shutdown across three charge runs.
Remove this battery from the charging dock immediately after reaching full charge — continuous dock trickle charging causes capacity fade in Ecovacs Li-ion packs within 2–3 weeks of daily dock storage.
Delivery time

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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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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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.

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.

Voltage

14.4V

Amp

6400mAh

Ecovacs Deebot T8 Series — 14.4V Li-ion Replacement Battery (S10-Li-144-5200)

This is a 14.4V, 6400mAh Li-ion replacement battery for the Ecovacs Deebot T8, T8+, T8 AIVI, and T8 AIVI Max Power robotic vacuum cleaners. It slots into the battery bay and reconnects the robot to its full cleaning cycle capacity. Voltage and cell count match the original specification exactly.

  • T8 series platform fit: The T8, T8+, T8 AIVI, and T8 AIVI Max Power all share the same 14.4V battery bay, connector orientation, and BMS handshake protocol. Swapping between these variants does not require adapter hardware or firmware changes — the battery communicates directly with the robot's charge management circuit.
  • Bench tested on actual hardware: We ran this battery through full charge and discharge cycles on the T8 platform. The BMS correctly reported cell state-of-charge to the robot's onboard display, and the protection circuit tripped as expected at low-voltage cutoff without requiring a manual reset.
  • Dock charging habit for the T8: The T8 is designed to return to its dock automatically, but parking it on the dock indefinitely between cleaning sessions accelerates capacity fade. Charge to full after a cleaning cycle, then remove the robot from the dock or disable scheduled auto-return until the next use.

Suction dropping before the battery indicator reaches low on the T8

This happens when the motor draws more current than the battery can deliver at its actual state of charge — not the displayed state. A partially clogged filter increases motor resistance, pulling the cell voltage below the BMS's stable delivery threshold while the indicator still reads mid-range. The robot interprets the voltage sag as normal load, not a low-battery event, so no warning triggers. Clean the filter first; if sag persists with a clean filter, the battery's internal resistance has climbed past the point where it can sustain the motor's peak draw.

T8 motor cuts out mid-cycle then recovers on its own

This is a BMS overcurrent trip, not a motor fault. When suction is restricted — blocked brush roll, saturated filter, or a tight carpet pile — the motor draws sustained current above the battery's rated output. The BMS cuts power to protect the cells, the robot pauses, then the circuit resets once current demand drops. Clearing the restriction resolves it in most cases. If cutouts continue with a clean, unblocked path, check that resting cell voltage reads above 14.0V before the next run.

Compatible Models

Deebot T8 T8AIVI T8+ T8 Aivi Max Power DLX11-21/61 DBX11-11/21 Deebot T8+ Deebot T8 Aivi Max Power T5 T8 N5 DJ65 DX33 DX53 DX55 T8 AIVI O950 Deebot Ozmo 9er Deebot Ozmo 950 DX9GDeebot Ozmo T8 Ozmo T8 Ozmo T8 AIVI DBX11-11 Ozmo T8+ DLX11-54 Deebot T9 Deebot T9 AIVI O920 O750 N5S N7 Deebot T9+ Deebot Ozmo 920 Deebot Ozmo 950 Deebot Ozmo T8+ Deebot Ozmo T8 AIVI Ozmo 950 DX9G Ozmo T8 AIVI DBX11-11 Ozmo T8+ DLX11-54 T9 T9+ T9 AIVI X1 TURBO T10 X1 Plus T10 PLUS X1 OMNI T10 TURBO T10 OMNI T20 OMNI N10 N10 PLUS T20e OMNI N20 N20 PRO N20 PLUS N20 PRO PLUS N20 COMBO T30S COMBO T30 OMNI T30 PRO OMNI T30S OMNI N20e N20e Plus N30 PRO OMNI N30 OMNI N30 MAX PLUS Deebot N20e Deebot N30 Pro Omin N30PROOMNI Deebot N30 Omin

Replaces Part Numbers

S10-Li-144-5200 201-1913-4201 S10-Li-144-6800 201-1913-4200 201-1913-420 10002644 201-2102-24Q5 201-2353-1097

Technical Specifications

Voltage14.4V
Amp Hours6400mAh
Capacity6400mAh
Rate92.16Wh
Net Weight391g /13.79 oz
Gross Weight571g /20.14 oz
Approximate Weight571g /20.14 oz
Dimension 137.00 x 50.50 x 37.25mm

Product Highlights

  • Brand: Ecovacs
  • Manufacturer: CS
  • Series: Standard
  • Color: Blue
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Ecovacs Deebot T8 suction noticeably weakens halfway through a clean even though the battery bar still shows plenty of charge — what's happening?

The battery indicator tracks estimated charge, not real-time voltage under load. A partially blocked filter forces the motor to work harder, pulling more current and causing cell voltage to sag below the motor's stable operating threshold while the display still reads mid-charge. Clean the filter and check the brush roll for hair wrap. If suction holds steady after that, the filter was the cause — not the battery.

My T8 keeps stopping mid-clean for a few seconds then starts again on its own — is this a battery fault?

That stop-start pattern is a BMS overcurrent trip resetting itself. Sustained restricted airflow — from a packed dustbin, clogged filter, or dense carpet — drives motor current above what the battery's protection circuit allows, so it cuts out briefly and resets when the draw drops. Empty the bin, clean the filter, and run a cycle on a hard floor to confirm. If it still trips on an open hard floor with a clean filter, test resting battery voltage — it should read 16.8V fully charged.

My replacement T8 battery seems to lose capacity faster than expected after just a few months — what causes early capacity fade?

Continuous dock parking is the most common cause. When the T8 sits on its dock between every session, the charger applies a trickle current to maintain 100% charge — and holding lithium cells at full charge continuously degrades them faster than normal cycling does. After each cleaning session, let the robot return to dock to charge fully, then either remove it or disable auto-dock until the next scheduled clean. This alone can significantly slow the rate of capacity loss.

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