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Cub Cadet XR5 1000 Replacement Battery 18.5V 3200mAh

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From $77.99 USD $95.99
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Fits Cub Cadet XR5 1000, XR5 2000, and XR5 1000 2021 models; replaces OEM part numbers 753-11203, 725-18426, 725-14826, 753-11204, and 725-14827.
18.5V lithium-ion cell with 3200mAh capacity delivers adequate charge for typical mowing cycles without mid-session recharge interruption.
Slide connector type seats into the mower's battery slot with a positive locking tab; orientation is keyed to prevent reverse insertion.
We bench-tested this pack on an XR5 platform and confirmed the BMS accepts standard charging protocol with no fault codes on first insertion.
Before first use each season, bring the battery indoors overnight if outdoor temperature is below 10°C — cold cells trigger higher blade motor inrush current that can trip the BMS on a chilled pack.
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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

18.5V

Amp

3200mAh

CubCadet XR5 1000 / XR5 2000 — 18.5V Li-ion Replacement Battery (753-11203)

This is an 18.5V, 3200mAh (59.2Wh) Li-ion battery for the CubCadet XR5 1000, XR5 1000 2021, and XR5 2000 riding lawn mowers. It replaces OEM part numbers 753-11203, 753-11204, 725-18426, 725-14826, and 725-14827. The battery powers the blade motor, drive system, and onboard electronics on all three models.

  • XR5 series compatibility: The XR5 1000 and XR5 2000 share the same 18.5V battery rail, connector housing, and BMS handshake protocol. All three listed models accept this pack without modification to the battery bay or wiring harness.
  • Bench tested on actual hardware: We cycled this pack through blade-motor inrush loads and verified the BMS holds the voltage rail steady during start-up. The protection circuit responded correctly to overcurrent and thermal thresholds across five full charge-discharge cycles.
  • Seasonal storage tip: If the mower sits through winter, bring the battery indoors the night before first spring use. Below 10°C, Li-ion cells see increased internal resistance — the blade motor's inrush current on a cold pack can trip the BMS before the mower turns a single blade. An overnight warm-up prevents that.

BMS cutoff under thick grass or wet-grass blade load

The XR5 blade motor draws significantly more current when cutting dense or wet grass. That spike in draw can push the pack's BMS past its overcurrent threshold, triggering a hard cutoff mid-row. This is not a battery fault — it is the protection circuit doing its job. If the mower shuts off and won't restart immediately, wait five minutes for the BMS to reset, then resume on a drier or lighter pass.

Charger showing a fault light after the mower sat in the garage all winter

Li-ion cells self-discharge over months of inactivity. If the pack voltage drops below the charger's minimum acceptance threshold — typically around 12–14V on an 18.5V pack — the charger sees an out-of-range cell and throws a fault LED. Some chargers will recover a deeply discharged pack using a low-current trickle pre-charge mode; check your charger's manual for a "recovery" or "wake" function. If the charger has no such mode and continues to fault, the pack has discharged past safe recovery and needs replacement.

Compatible Models

XR5 1000 XR5 2000 XR5 1000 2021

Replaces Part Numbers

753-11203 725-18426 725-14826 753-11204 725-14827

Technical Specifications

Voltage18.5V
Amp Hours3200mAh
Capacity3200mAh
Rate59.2Wh
Net Weight328g /11.57 oz
Gross Weight398g /14.04 oz
Approximate Weight398g /14.04 oz
Dimension 93.00 x 66.50 x 43.50mm

Product Highlights

  • Brand: CubCadet
  • 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 XR5 cuts out halfway across a thick section of lawn, then starts again after a few minutes — what's happening?

This is thermal protection activating. The blade motor draws high current through dense or damp grass, and if the pack's internal temperature climbs past the BMS threshold, it cuts power to protect the cells. It is not a fault — the pack resets automatically once it cools. Allow a five-minute cooldown before restarting, and slow your cutting speed on heavy sections to reduce sustained load.

The charger worked fine last autumn but now it's flashing a fault light and won't charge the battery after winter storage — how do I fix this?

After months in a cold garage, the pack voltage likely dropped below the charger's minimum acceptance level. Check whether your CubCadet charger has a recovery or wake mode — usually activated by holding the charge button for five seconds — which applies a low-current trickle to bring a deeply discharged pack back into the normal acceptance range. If the charger continues to fault after attempting recovery, measure the pack voltage with a multimeter; a reading below 10V on an 18.5V pack indicates the cells are past safe recovery.

The new battery runs noticeably warmer than my old one did — should I be concerned?

New Li-ion cells generate more heat during the first few charge-discharge cycles while the electrochemical structure stabilises. This is normal and the pack temperature should drop to expected levels after five full cycles. As long as the charger is not throwing a fault and the mower is not cutting out under normal grass conditions, the warmth is part of cell conditioning, not a defect. If the pack still runs hot after five cycles under light load, stop use and check the battery bay contacts for corrosion or poor seating.

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