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OHYES BAT 40V 8.0Ah Kobalt-Compatible Battery1 / 7
Product guide

OHYES BAT 40V 8.0Ah Kobalt-Compatible Battery

Kobalt-Compatible: OHYES BAT’s 40V replacement battery is listed with 8.0Ah capacity, a rechargeable lithium-ion design, and a four-LED fuel gauge. It is intended for compatible Kobalt 40V tools, but buyers should match their tool and charger model against the listing’s compatibility details before ordering.

At a glance

  • Single replacement battery with a listed 40V, 8000mAh capacity.
  • Built-in four-LED indicator displays remaining battery level.
  • Listing names Kobalt 40V outdoor tools and selected battery and charger model numbers as compatible.
Price
$65.98Save 15%

Reference price: $77.63

Price checked: Nov 14, 2026

View offer

Pros and cons

Pros

  • The four-LED gauge gives a visible indication of remaining charge.
  • The claimed 8.0Ah capacity may suit buyers seeking a replacement with a stated capacity for compatible 40V tools.

Technical specifications

10 specifications
Identity
BrandOHYES BAT
Power and battery
Battery typeLithium Ion
Voltage40 Volt
Capacity8000mAh
RechargeableRechargeable
Battery weight16 ounces
Battery count1 A batteries required. (included)
Compatibility and indicators
Tool compatibility claimCompatible with Kobalt 40V cordless tool such as 40V string trimmer, leaf blower, hedge trimmer, chainsaw and lawn mower etc. Replacement for KPM1040A-03, KM-1640-06,KM 4040-06,KM1940-07 and so on
Charger compatibility claimCompatible with Kobalt 40V KRC60-06 / KRC40-06 / KRC 840-03 Charger
Fuel gaugeBuilt-in 4 LED indicator to monitor remaining battery levels, it's convenient to charge your battery when it shows low battery

What to know before buying

Listing details to confirm

The listing has inconsistent kit details: the title and feature text indicate one battery, while the package list claims one battery and one user manual. It also gives compatibility as a broad range of Kobalt 40V tools and specific tool and charger models, so confirm the exact model fit before purchase. Capacity and performance are listing claims, not independently verified measurements.

Who is it for?

A good fit for

  • Owners of Kobalt 40V cordless tools who have confirmed their exact tool and charger model is compatible.
  • Buyers who want a single replacement battery with a visible charge-level indicator.

Less suited to

  • Buyers needing a confirmed fit for a model not named in the listing.
  • Buyers seeking an included charger or a multi-battery bundle.
OHYES BAT 40V 8.0Ah Kobalt-Compatible Battery · photo 2
Additional product photo 2

Customer reviews on Amazon

5 / 5 · 23 ratings
  • 5 stars95%95%
  • 4 stars5%5%
  • 3 stars0%0%
  • 2 stars0%0%
  • 1 star0%0%

Aggregate ratings are strongly positive, with nearly all ratings in the five-star category and a small remainder in the four-star category. That is a limited signal of reported satisfaction, not evidence about runtime, compatibility, or long-term performance. Buyers should assess those factors against the listing’s claimed 40V, 8000mAh capacity and verify fit for their particular tool.

Frequently asked questions

Which tools does this battery claim to fit?

The listing claims compatibility with Kobalt 40V cordless tools, including string trimmers, leaf blowers, hedge trimmers, chainsaws, and lawn mowers. It names several battery models, so verify your exact tool and battery model before ordering.

Does it include a charger?

No charger is listed as included. The page instead names selected Kobalt 40V chargers as compatible.

What does the four-LED indicator do?

The listing says the built-in gauge indicates remaining battery level, helping show when the battery is low.

OHYES BAT 40V 8.0Ah Kobalt-Compatible Battery · photo 3
Additional product photo 3

Alternative options

Product details in Markdown