OHYES BAT OP4075A Replacement Battery, 40V, 7,500mAh, 2-Pack

OHYES BAT OP4075A replacement batteries are a two-pack listed for Ryobi 40V tools. Each is described as a 7,500mAh lithium-ion battery, with four charge-indicator lights and claimed compatibility with selected Ryobi tools and chargers.

At a glance

Two replacement batteries are advertised for Ryobi 40V tools.
The listing states 7,500mAh capacity per battery and describes four smart LED charge-indicator lights.
Compatibility is claimed for selected Ryobi 40V tools and chargers. The listing names both compatible and excluded tool models.
Built-in protections are claimed for overcharging, over-discharge, over-current, and short circuits.

Price

$79.87Save 15%

Reference price: ~~$94.10~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

A two-battery pack can provide a spare for compatible tools.
Four charge-indicator lights are claimed to help show battery charge level.
The listing names several Ryobi 40V tool and charger models, giving buyers compatibility references to check.

Technical specifications

4 specifications

Identity
Brand	OHYES BAT
Model	Battery

Power and battery
Battery type	Lithium Ion

Dimensions and installation
Weight listed	200 g

What to know before buying

Listing details to confirm

Listing details are inconsistent: the title and feature text specify 7,500mAh, but the stated 40V specification appears as malformed text and is excluded from the technical table. The listing also gives differing compatibility lists, explicitly says it does not fit RY40002 and RY40408, and does not confirm that every listed tool or charger is compatible. Check your exact model before purchase.

Who is it for?

A good fit for

Ryobi 40V tool owners seeking a two-pack of claimed replacement batteries who can confirm their exact tool and charger models against the listing.

Less suited to

Buyers who need confirmed fitment for a model not clearly covered by the listing.
Buyers seeking a battery-and-charger bundle. No charger is specified as included.

OHYES BAT OP4075A Replacement Battery, 40V, 7,500mAh, 2-Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

3.5 / 5 · 2 ratings

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Only a very small number of aggregate ratings are supplied, and they are split between high and low star categories. That is too little evidence to identify dependable strengths, problems, or reasons for the ratings. Buyers should weigh this uncertainty against their need for confirmed tool compatibility and the stated capacity.

Frequently asked questions

How many batteries are included?

The listing describes two lithium-ion batteries as included and identifies the product as a two-pack.

What capacity does the listing claim?

The title and feature text state 7,500mAh. This is a listing claim, not an independently verified measurement.

Which Ryobi tools and chargers are compatible?

The listing names a range of Ryobi 40V tool and charger models, but its compatibility lists are inconsistent and it expressly excludes RY40002 and RY40408. Check the exact model before buying.

Is a charger included?

The supplied package information lists two batteries and one user manual. It does not list a charger.