Bosch GDR 10.8V Li-ion Replacement Battery 4000mAh BAT411
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Bosch GDR 10.8V Li-ion Replacement Battery 4000mAh BAT411 - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
Battery Care Tips
🔹 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.
🔹 Keep It Healthy
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.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
Disclaimer
Disclaimer
⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.
🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Bosch GDR 10.8V Li-ion Replacement Battery 4000mAh BAT411 - is backordered and will ship as soon as it is back in stock.
Voltage
10.8V
Amp
4000mAh
Bosch GDR 10.8 V-LI Series — 10.8V Li-ion Replacement Battery (BAT411A)
This is a 10.8V, 4000mAh Li-ion battery for the Bosch GDR 10.8 V-LI compact drill/driver and its siblings across the 10.8V platform. It replaces OEM part numbers BAT411, BAT411A, BAT412A, BAT413A, and the 2 607 336 013 series. Voltage and cell chemistry match the original pack exactly.
- 10.8V platform fit: The GDR, GLI, GMF, GSA, and 67 additional Bosch 10.8V tools share a common battery interface — same voltage rail, same connector, and the same BMS handshake protocol. One pack covers the full platform.
- Bench tested on actual hardware: We ran this pack on the GDR 10.8 V-LI under repeated fastening cycles. The BMS held the voltage rail steady through multiple trigger pulls, with overcurrent protection tripping correctly on deliberate stall tests rather than false-cutting mid-task.
- Motor inrush conditioning: On first use, run the drill at half load for two full discharge-and-charge cycles before pushing maximum torque. This lets the BMS profile the motor inrush current spike and calibrate its overcurrent threshold — reducing nuisance trips on heavy fastening later.
BMS cutoff on motor-start inrush in the GDR 10.8 V-LI
The GDR 10.8 V-LI draws a sharp current spike the instant the trigger closes — motor-start inrush can hit three to four times the steady running current for a fraction of a second. A new or recently stored pack has a BMS that has not yet logged that specific motor's inrush signature, so the overcurrent threshold trips early. After two or three full working cycles, the BMS adjusts its cutoff window to match the actual inrush profile of the tool. If the drill cuts out repeatedly on the first trigger pull, this is the cause — not a faulty battery.
Charger not recognising the new pack after storage
Li-ion cells self-discharge during storage. If this pack sat in a warehouse long enough, cell voltage can drop below the charger's acceptance threshold — typically around 2.5V per cell, or roughly 7.5V at the pack level for a 10.8V three-cell series pack. When the charger sees voltage below that threshold, it refuses to begin a charge cycle and may blink red or show no activity at all. Place the pack in the charger and leave it connected for 10–15 minutes — most Bosch 10.8V chargers include a recovery mode that trickle-charges at low current to bring cells back above the 2.5V floor before switching to normal charge.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Bosch
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My GDR 10.8 V-LI cuts out the instant I pull the trigger hard — is the battery tripping?
Yes — this is a BMS overcurrent trip caused by motor-start inrush current, not a faulty pack. The moment the trigger closes, current spikes sharply before the motor reaches speed, and a new pack's BMS may cut the circuit before that spike resolves. Run the drill at half load for two full cycles so the BMS can log the inrush profile and widen its cutoff window accordingly. After conditioning, the cutout on hard trigger pulls should stop.
The drill feels weak and bogs down halfway through a screw — battery or tool?
That behaviour points to voltage sag under load, which gets worse when contact resistance at the battery terminals is high. Remove the pack and check both the tool-side and battery-side contacts for oxidation or debris — corroded contacts add resistance and cause the rail voltage to drop under current draw, making the motor bog. Clean the contacts with a dry cloth or fine abrasive, reseat the pack firmly, and retest. If sag continues, measure open-circuit pack voltage after a full charge — it should read at least 12.0V for a healthy 10.8V Li-ion pack.
The drill works fine indoors but loses power noticeably when I use it in a cold garage — what's happening?
Li-ion internal resistance rises significantly below 5°C, which means the cells can't deliver current as freely — the pack voltage sags harder under load in cold conditions. This isn't a defect; it's a chemistry property. Bring the battery indoors and let it warm to room temperature before use, or store it inside and only take it out to the worksite when needed. A pack that reads 12.0V warm may only sustain 10.5V under the same load at 0°C — warming it up recovers that headroom.
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