Replacement Battery Compatible with Coredy R500+ R300 R650 R3500

In this review the Replacement Battery Compatible with Coredy and several other robot vacuum models is evaluated for users who need a direct, affordable swap for a worn battery. The bottom line: this 14.4v 2600mAh pack is best for owners who want a like-for-like replacement that promises OEM-grade cells and built-in safety without needing a full new robot. It stands out for using BYD power cells and an original factory Battery Management System, which is the single biggest reason to consider it over generic, unprotected packs.

Key Features

• BYD power cells: Uses Original Equipment Manufacturer BYD cells for improved longevity and more consistent performance compared with unknown cell brands.
• Battery Management System: Includes the original factory BMS with a high-end 20 pins protection IC to monitor and protect each cell individually.
• Safety protections: Built-in safeguards defend against short-circuit, over-voltage, over-current, over-heat and over-discharge for safer daily use.
• Broad compatibility: Designed to fit many models including Coredy, Amarey, iMartine, Tesvor and select Ecovacs and Eufy vacuums, reducing the chance of a mismatch.
• Easy installation: Simple connector and size that most users report as straightforward to swap, so no special tools or technician are normally required.
• Longer runtime: 14.4v 2600mAh capacity provides extended cleaning sessions, often lasting more than 100 minutes per charge under light load.

Who It's For

This replacement battery is aimed at owners of compatible robot vacuums who want a cost-effective, OEM-cell replacement to restore run time without replacing the entire machine. It is a good fit for DIYers comfortable opening the robot's battery compartment and matching the 3-prong connector and size.

Those who should look elsewhere include users with non-compatible connector types or significantly different battery sizes, and buyers who need faster charging features or higher capacity packs than 2600mAh. Also consider professional servicing if the robot has other hardware faults beyond battery life.

Pros & Cons

Pros

• Uses BYD cells and a managed BMS, offering reliable safety and cell-level protection.
• Wide compatibility list covers numerous Coredy, Amarey, iMartine, Tesvor, Ecovacs and Eufy models.
• Customers report easy installation, correct fit and good value compared with OEM replacements.
• Provides extended runtime that can exceed 100 minutes in light-use scenarios.

Cons

• Actual battery life varies by robot model and usage, and some customers note mixed results on longevity compared with expectations.
• Not suitable if the vacuum requires a different connector or physical battery dimensions.

Specifications

Voltage	14.4v
Capacity	2600mAh
Cell Manufacturer	BYD (OEM)
Connector	3 prongs
Protection	Factory BMS with 20-pin protection IC
Compatibility	Coredy R300 R500+ R650 R3500 R3500S R600 R580 and Amarey A800 A900, plus many Ecovacs and Eufy models
Warranty	1 year limited

Our Verdict

The Replacement Battery is a sensible, value-forward option for owners of compatible robot vacuums who need to restore runtime without expensive service. With BYD cells, an original BMS and broad model compatibility, it delivers safety and ease of installation; just verify the 3-prong connector and physical size before purchasing to ensure a proper fit.

Frequently Asked Questions

Will this battery fit my robot?
Check the battery size and the 3-prong connector against your current pack; the battery is compatible with many Coredy, Amarey, Ecovacs and Eufy models listed in the product details.

How long does it take to charge and run?
Charging time depends on the robot's charger, but runtime is typically more than 100 minutes under light use thanks to the 2600mAh capacity.

Is there support if I have an issue?
Seller support is available 24/7 via the buyer-seller messaging service and the pack carries a 1 year limited warranty for defects.