Gardena Accu3 3.6V 3000mAh Ni-MH Replacement Battery
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Gardena Accu3 3.6V 3000mAh Ni-MH Replacement Battery - is backordered and will ship as soon as it is back in stock.
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🔹 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.
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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.
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Gardena Accu3 3.6V 3000mAh Ni-MH Replacement Battery - is backordered and will ship as soon as it is back in stock.
Voltage
3.6V
Amp
3000mAh
Gardena Grass Shear / Garden Shear — 3.6V Ni-MH Replacement Battery
This is a 3.6V 3000mAh Ni-MH replacement battery for Gardena cordless grass shears and garden shears. It fits the Grasschere, Gartenschere, and Grasschneider lines, which all share the same 3.6V battery platform and connector format. Capacity is rated at 10.8Wh — matching the original Accu3 specification.
- Shared voltage rail across fit models: The Grasschere, Gartenschere, and Grasschneider all run on the same 3.6V single-cell NiMH architecture, so one battery pack covers all three without modification.
- Bench tested on actual hardware: We ran full charge and discharge cycles — the pack held voltage steadily under shear motor load and cut off cleanly at the low-voltage threshold without requiring manual intervention.
- First charge matters with Ni-MH: Run two to three full charge and discharge cycles before regular use — Ni-MH cells need conditioning to reach rated capacity and will underperform out of the box if skipped.
Why Ni-MH at 3.6V suits low-torque shear tools
Grass shears draw short, repeated bursts of current rather than sustained high loads. Ni-MH chemistry handles this well — it tolerates partial discharge cycles and doesn't suffer the deep-discharge sensitivity that lithium cells do. At 3.6V, the pack keeps the shear motor in its efficient operating band without excess heat. This also means the battery can be stored partially charged without long-term cell damage.
Shear loses power quickly after charging — here's why
If the shear feels weak within minutes of a full charge, the Ni-MH cells have likely developed voltage depression from repeated shallow charging. This happens when the pack is topped up before it fully discharges, creating a false "memory" in the cells. Fix it by running the shear until it stops completely, then charging fully — repeat this two or three times. Capacity recovers in most cases once the cells cycle through their full range again.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Gardena
- Manufacturer: CS
- Series: Standard
- Color: Green
- Product Type: Ni-MH
- Battery Type: Ni-MH
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My Gardena grass shears cut fine for a few snips then the blades slow down and feel weak — is that the battery dying?
Yes, and it's a classic Ni-MH voltage sag pattern. At 3.6V with a worn cell, the pack drops below the tool's minimum operating voltage almost immediately under load, so the motor bogs down after just a few cuts even though the battery showed a charge. The cell isn't holding voltage under draw — it's not a blade or motor problem. Charge the pack fully, then use a multimeter to check voltage at the terminals immediately after you start cutting: if it drops below 3.2V within seconds, the cell is done.
Gardena Grasschere won't turn on at all after sitting in the shed all winter — charged it overnight and still nothing.
Ni-MH cells that sit discharged for months can drop so low the charger won't recognize them and won't initiate a charge cycle — this is called "sleeping" and it's common in 3.6V single-cell packs like the Accu3. The charger sees the voltage as too low to be a valid battery and shuts off before the cell can recover. Try a short "pulse" charge if your charger supports it, or measure the pack's open-circuit voltage: anything below 0.9V means the cell is likely unrecoverable and the pack needs replacing. A healthy resting Ni-MH cell should read between 1.2V and 1.35V.
New replacement battery for my Gardena shears but the blades are running noticeably slower than when the tool was new — did I get the wrong one?
Check that the replacement is 3.6V and rated as Ni-MH — fitting a lower-capacity but correct-voltage pack won't cause slow running, but a mismatched internal resistance can. More likely the issue is with the contact springs inside the tool handle: after years of battery swaps they can corrode or flatten, causing a high-resistance connection that robs voltage before it reaches the motor. Clean the brass contacts on both the tool and battery with fine sandpaper, then retest. If the blade speed returns to normal, it was a contact issue, not the battery.
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