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GERIT BATT OP4026 40V 7.5Ah Replacement Battery1 / 7
Product guide

GERIT BATT OP4026 40V 7.5Ah Replacement Battery

The GERIT BATT OP4026 is a single lithium-ion replacement battery listed for Ryobi 40V tools. Its stated 7.5Ah capacity and four-LED charge indicator may suit buyers seeking a spare, but customer feedback includes concerns about runtime and mixed compatibility experiences.

At a glance

  • The listing claims compatibility with a range of Ryobi 40V battery and tool models, and names the ZROP401 charger.
  • A built-in four-LED indicator is described as showing remaining battery power.
  • The listing claims 7.5Ah capacity and says runtime is twice that of a standard 4.0 Ah battery. This is a manufacturer claim, not an independent runtime measurement.
Price
$43.79Save 22%

Reference price: $55.99

Price checked: Nov 14, 2026

View offer

Pros and cons

Pros

  • A stated 7.5Ah capacity offers a higher-capacity replacement option than the listing's 4.0Ah comparison battery.
  • The four-LED battery indicator provides a listed way to check remaining charge.

Cons

  • Customer feedback reports that battery life can fall short of expectations.

Technical specifications

12 specifications
Identity
BrandGERIT BATT
ModelOP4026
Power and battery
Voltage40 volts
Capacity7500 milliamp_hours
Amperage7.5 A
Battery typeLithium Ion
RechargeabilityRechargeable
Batteries required1 A batteries required.
Compatibility and use
Recommended useIndoor/Outdoor
Dimensions and installation
Weight listed16 ounces
Battery weight2 pounds
Warranty
Warranty description1 year manufacturer

What to know before buying

Listing details to confirm

Compatibility details are inconsistent: the listing names OP40602 among compatible battery models, but its later part-number list omits it, and the tool list explicitly excludes RY40002 and RY40408. Charger compatibility is stated for ZROP401, while customer feedback reports mixed charger compatibility. Verify the exact tool and charger model before buying. The title and listing identify a 7.5Ah battery, while the technical capacity is listed as 7500 milliamp_hours and amperage as 7.5 A. The claimed twice-the-runtime comparison is not independently substantiated. The manufacturer says the battery is shipped not fully charged and recommends charging at least once every 2–3 weeks during extended inactivity.

Who is it for?

A good fit for

  • Ryobi 40V tool owners looking for a single replacement or spare battery, after confirming their specific tool and charger are listed as compatible.
  • Buyers who value a built-in charge indicator and want a battery listed at 7.5Ah.

Less suited to

  • Buyers who need a charger included. The listing says the charger is not included.
  • Buyers who require verified runtime or guaranteed compatibility with a specific Ryobi tool or charger.
GERIT BATT OP4026 40V 7.5Ah Replacement Battery · photo 2
Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 887 ratings
  • 5 stars73%73%
  • 4 stars10%10%
  • 3 stars6%6%
  • 2 stars3%3%
  • 1 star8%8%

Customer feedback highlights perceived good quality and quick charging, alongside reports that runtime can be shorter than expected. Compatibility experiences are mixed, including reports of charger-related problems. That matters for buyers considering this as a long-running spare or relying on a particular tool and charger pairing. The listing's 7.5Ah capacity and broad compatibility claims do not establish real-world runtime or compatibility for every model.

Positive themes

  • Customers mention good quality and quick charging.

Negative themes

  • Some customers report that battery life does not meet expectations.

Mixed feedback

  • Compatibility feedback is mixed, with some customers finding the battery suitable and others reporting charger-related issues.

Frequently asked questions

Does this battery include a charger?

No charger is listed as included. The listing explicitly says the charger is not included.

Which Ryobi tools are compatible?

The listing names a range of Ryobi 40V tools but also excludes RY40002 and RY40408. Check the exact tool model, and note the stated charger compatibility is for ZROP401.

How much capacity does the battery have?

The listing gives 7500 milliamp_hours and describes the battery as 7.5Ah. Its claim of twice the runtime of a standard 4.0 Ah battery is not independently verified.

GERIT BATT OP4026 40V 7.5Ah Replacement Battery · photo 3
Additional product photo 3

Alternative options

Product details in Markdown