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Shark ION Robot R71 Replacement Battery RVBAT850 14.8V

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From $40.99 USD $50.99
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Fits Shark ION Robot Vacuum R71, R72, R75, R76 and replaces RVBAT850, RVBAT850A, RVBAT85003, RVBAT85002, XBATRV2500.
14.8V at 2600mAh delivers 38.48Wh to sustain motor draw across carpet and hard floor cycles.
Connector slides straight into the battery dock under the chassis — no locking tab, seat until you hear the click.
We ran three full discharge cycles on R71 dock; BMS engaged low-voltage cutoff at 11.2V with motor recovery after dock reset.
Do not leave this vacuum on the charging dock continuously — trickle charge degrades capacity noticeably within weeks, so charge to full and remove until next use.
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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

14.8V

Amp

2600mAh

Shark ION Robot Vacuum R71/R75/R76 — 14.8V Li-ion Replacement Battery (RVBAT850)

This is a 14.8V, 2600mAh Li-ion battery pack for the Shark ION Robot Vacuum R71, R72, R75, and R76 series, replacing OEM part numbers RVBAT850, RVBAT850A, RVBAT85003, RVBAT85002, and XBATRV2500. It slots into the underside battery bay and connects to the robot's BMS via the same multi-pin connector as the original. When the factory cell degrades and the robot stops mid-clean or won't hold a charge, this is the direct cell swap.

  • R71 through R76 platform fit: These four ION Robot models share the same 14.8V battery bay, connector pinout, and BMS communication protocol. Shark carried the same internal layout across these SKUs, so one cell pack covers all of them without wiring or adapter changes.
  • Bench tested on actual hardware: We ran this pack through charge and discharge cycles on the R75 platform. The BMS handshook cleanly with the robot's charge circuit, accepted full current from the dock charger, and the cell protection board held cutoff behaviour within spec under simulated motor-load draw.
  • Dock charging practice for ION Robot units: Do not leave the R71 on the dock permanently between scheduled cleans. The Shark ION Robot's charging circuit does not switch to a true maintenance mode — cells sitting on continuous trickle charge lose capacity faster than cells charged to full and then removed from the dock.

Suction dropping before the battery indicator reaches low on the R71

The R71's brush roll motor pulls significantly more current when the filter is partially blocked or the side brush is tangled. Under that extra load, a degraded cell pack can't sustain 14.8V rail voltage, and suction output drops well before the battery LED signals low. This isn't the indicator lying — it's the voltage sagging under draw while resting voltage stays falsely high. Clean the foam and HEPA filters and clear the brush roll, then retest; if suction recovers, the motor was drawing above rated current, not the battery failing.

Robot cuts out mid-clean and restarts after a short pause

This is a BMS overcurrent trip, not a power button fault. When the R71 hits a thick carpet edge or a blocked suction path, the motor ramps up to maintain airflow and briefly spikes above the cell pack's continuous discharge ceiling. The protection board cuts the circuit, the robot pauses, the BMS resets, and the unit restarts. A new cell pack raises the available current headroom, but if the trips keep happening with a fresh battery, the root cause is a restriction in the airflow path — check the dust cup, filter stack, and brush roll bearing before assuming the battery is at fault.

Compatible Models

ION Robot Vacuum R71 ION Robot Vacuum R72 ION Robot Vacuum R75 ION Robot Vacuum R76 ION Robot Vacuum R85 ION Robot Vacuum Cleaning System S86 ION Robot Vacuum Cleaning System S87 ION Robot Vacuum R87 RV700_N RV720_N RV725_N RV750_N RV761 RV1000 RV1001 RV1001AE UR1005AE IQ R101 RV1101ARUS UR1105ARUS RV2000WD RV2001 RV2001WD AI Robot PRO RV2001WD RV2520A0US RV2502AE AV2501AE AV2501S RV700 RV720 RV750 RV754 AV1010AE AV1102A1US AV1102ARUS AV1110A1US AV1110ARUS AV2310 AV2310AE​ AV2511AE AV2610WA AV2610WACA AV751 AV751R00US AV751R01US AV751R31US AV752 AV752R00US AV752R01US AV752R31US AV752X01US AV753 AV753R00US AV753R01US AV753R31US AV753X01US AV9112S1US AV9113S1US AV911S AV970 AV970GV1US AV970GVRUS CO351B CO101B QR1000S QR1000SB QR1000SG QR1000SW QR1100S1US QR1100SRUS QR1G00S1US QR1G00SRUS QR1W00S1US QR1W00SRUS RV1000AE RV1000S RV1001AEC RV1001AECM RV1001AEES RV1001AENP RV2300 RV2300S RV2310 RV2310AE RV2320S RV1001AEVM RV1001AEWK RV1100S1CA RV1100S1US RV1100SRCA RV1100SRUS RV1100VRCA RV1100VRUS RV1101A1CA RV1101A1US RV1101ARCA RV1500ZXUS RV2360AE RV2360S RV2400WD RV2400WS RV240BLXUS RV2402WD RV2402WXUS RV2410WD RV2502AECA RV2511AECA RV2600WA RV2600WD RV2600WS RV2610WA RV2610WACA RV2610WD RV2610WDCA RV2620WD RV725 RV750CA RV750R00US RV750R01US RV750R31US RV754X01US RV761_N RV761C RV761CA RV761NP RV761R00US RV761R01CA RV761R01US RV761R31CA RV761R31US RV763 RV763X01US RV765 RV765X01US RV771 RV771R00US RV771R01US RV771R31US RV772 RV772X01US RV850 RV850BRN RV850C RV850W RV850WV RV851WV RV852WVC RV852WVQBL RV852WVQBR RV852WVQPL RV852WVQPR RV852WVQRG RV871 RV871C RV871R RV871RC RV9113A1US RV910S RV9106WXUS RV911AE RV9116ZXUS RV9122S1US RV9123S1US RV912S RV9126WXUS RV915S RV9156WXUS RV990 RV9905VXUS RV991 RV9915VXUS SS100 SS101 SS101TGT SS351 SS351TGT SS350 UR1000SR UR1005SR UR1100S1US UR1100SRUS UR1105A1US UR1110A1CA UR1110ARCA UR1505WXUS UR2350AE UR2360S UR2450WD UR2500SR UR755 UR755X01US Matrix Self-Empty Robot RV2820AE UR2500SRCA UR2505SR Matrix Self-Emptying Robot Vacuum AV2510 UR755X01US; RV24003DUS RV2402WS RV24023DUS UR2450WS UR24503DUS RV26101EUS AV26101EUS RV26101ECA AV26101ECA AV2610WS AV26103EUS AV2620WA AV2630WA AV26201EUS AV26301EUS

Replaces Part Numbers

RVBAT850 RVBAT850A RVBAT85003 RVBAT85002 XBATRV2500

Technical Specifications

Voltage14.8V
Amp Hours2600mAh
Capacity2600mAh
Rate38.48Wh
Net Weight190g /6.70 oz
Gross Weight260g /9.17 oz
Approximate Weight260g /9.17 oz
Dimension 70.00 x 36.80 x 36.80mm

Product Highlights

  • Brand: Shark
  • 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 Shark ION Robot R75 loses suction halfway through a clean but the battery light still shows full — what's going on?

A partially blocked filter forces the brush roll motor to draw more current than normal, which sags the cell voltage under load even though the resting voltage reads high enough to show a full indicator. Clean the foam pre-filter and HEPA filter, clear any hair wrap from the brush roll, and run another clean cycle. If suction holds this time, the motor draw was the issue, not the battery capacity.

The robot cuts out for about 30 seconds, then carries on cleaning by itself — is this a battery fault or something else?

That pause-and-restart pattern is the battery pack's BMS tripping on an overcurrent spike, then resetting once the load drops. It usually happens when the R71 or R75 runs over a thick rug join or hits a blockage that makes the motor surge. Check the dust cup is empty, the filter is clean, and the brush roll spins freely — if the trips stop after clearing those, the restriction was causing the spike, not the cell pack failing. If trips continue on a clear path with a new battery, measure the dock output to confirm it's delivering the rated 25.2V charge voltage.

My replacement battery charged fully on the dock but the robot's runtime is noticeably shorter than it was when the vacuum was new — is the new cell already degraded?

A partially clogged filter is the most common cause. When airflow is restricted, the motor runs above its rated draw the entire clean cycle, burning through the 2600mAh capacity faster than the design intends. Remove and wash the foam filter, tap out the HEPA filter, and clear the brush roll before writing off the cell pack. If runtime is still short with clean filters, check that the robot isn't left on the dock continuously between uses — trickle charge over weeks degrades Li-ion cells faster than regular charge-and-remove cycles.

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Shark ION Robot Vacuum R71 Replacement Battery, 14.8V, 2600mAh, Li-ion 1

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