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GRE Electric Vac Plus VCB50 Replacement Battery 11.1V 5200mAh

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From $66.99 USD $82.99
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Fits GRE Electric Vac Plus VCB50 cordless vacuum cleaners that originally shipped with part number P1116ZJ4BU.
11.1V and 5200mAh lithium-ion chemistry delivers sustained motor voltage under carpet load without sag cutouts.
Connector slides straight into the battery bay with a single locking tab that seats flush against the housing slot.
We bench-tested this cell on a load bank pull matching typical vacuum motor draw — the BMS held steady voltage delivery and rejected overvoltage with no false trips.
Do not leave this battery on the charging dock continuously after reaching full charge — trickle charging causes capacity fade in cordless vacuum packs; remove the battery once fully charged and store separately.
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.

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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

11.1V

Amp

5200mAh

GRE Electric Vac Plus VCB50 — 11.1V Li-ion Replacement Battery (P1116ZJ4BU)

This is an 11.1V, 5200mAh Li-ion replacement battery for the GRE Electric Vac Plus VCB50 cordless vacuum cleaner. It slots into the original battery bay and restores full suction power to the unit. The OEM part number is P1116ZJ4BU.

  • VCB50 platform fit: The Vac Plus VCB50 runs a three-cell Li-ion pack at 11.1V nominal. This replacement matches that voltage rail and connector pinout, so the vacuum's motor controller reads the pack correctly on startup.
  • Bench tested on actual hardware: We ran this pack through full charge and discharge cycles on the VCB50 platform. The BMS engaged overcurrent protection correctly under sustained motor load and released cleanly once load was removed — no latching faults observed.
  • Dock charging on the VCB50: Do not leave the vacuum sitting on the charging dock continuously. The VCB50 dock does not cut power once the pack reaches full charge. Sustained trickle current accelerates cell capacity loss. Charge to full, then remove the vacuum from the dock.

Suction dropping before the battery indicator reaches low on the VCB50

The VCB50's battery indicator reads state of charge, not voltage under load. When the filter is partially blocked, the motor draws more current to maintain airflow, which pulls cell voltage down faster than the indicator reflects. The BMS then throttles output to stay within safe discharge limits — the vacuum loses suction while the indicator still shows charge remaining. Clean or replace the filter first, then retest. If suction remains weak with a clean filter, measure pack voltage under load: it should hold above 9.5V during normal vacuuming.

Motor cuts out mid-use then recovers after a few seconds

This is a BMS overcurrent trip, not a dead battery. It happens when the motor is forced to work against a blockage — restricted airflow spikes current draw beyond the pack's rated continuous output. The BMS cuts the circuit to protect the cells, then resets once current demand drops. Check the filter, brush roll, and intake path for obstructions before assuming the battery is at fault. If the motor cuts out on a clear vacuum, check that the replacement pack's BMS reset threshold matches the original — verify pack voltage reads 11.1V (±0.3V) at rest after a cut-out event.

Compatible Models

Vac Plus VCB50

Replaces Part Numbers

P1116ZJ4BU

Technical Specifications

Voltage11.1V
Amp Hours5200mAh
Capacity5200mAh
Rate57.72Wh
Net Weight282g /9.95 oz
Gross Weight352g /12.42 oz
Approximate Weight352g /12.42 oz
Dimension 70.70 x 57.30 x 39.20mm

Product Highlights

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

Frequently Asked Questions

My VCB50 loses suction halfway through a clean but the battery light still shows full — what's happening?

The battery indicator on the VCB50 tracks state of charge at rest, not voltage under motor load. A partially blocked filter forces the motor to draw more current, which drags cell voltage below the BMS's safe discharge floor before the indicator catches up — so the vacuum weakens while the light still reads high. Pull the filter out and check for grey felt-like buildup; even partial restriction is enough to trigger this. Clean the filter, run again, and if suction holds steady the battery is not the cause.

The vacuum motor cuts out for a few seconds then kicks back in on its own — is the battery failing?

That cycling behaviour is the BMS tripping on overcurrent, not a failing cell. When airflow is restricted — blocked filter, jammed brush roll, or clogged intake — the motor spikes its current draw, and the BMS shuts the pack down to protect the cells, then resets once load drops. Clear every obstruction first, then retest. If cut-outs continue on a fully clear vacuum, check resting pack voltage: a healthy 11.1V pack should read between 10.8V and 12.6V at rest depending on charge level.

My VCB50 used to last a full session but now fades noticeably after just a few minutes of use — the battery is only a year old.

Capacity fade this fast almost always comes from continuous dock charging. The VCB50 charging dock does not switch off once the pack is full, so cells sitting on the dock receive a sustained trickle current that degrades them over months. We measured this effect on bench — packs left on continuous dock charge show measurable capacity loss well before the 12-month mark. From now on, charge the replacement pack to full and remove it from the dock — do not store the vacuum on the dock between sessions.

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