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DeWalt DCB182 20V Lithium-Ion Replacement Battery 2600mAh

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New arrival
From $101.99 USD $125.99
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Fits DeWalt DCD740, DCD780, and 186+ models; replaces DCB182, DCB183, DCB184, DCB102, DCB105, DCB112, DCB120, DCB204, DCB205, DCB206, and all listed OEM part numbers.
20V nominal, 2600mAh capacity delivers 52Wh — sufficient for mixed drilling and fastening tasks before swap-out on job sites.
Slide connector seats flush into the battery slot with a quarter-turn locking tab that seats parallel to the tool body.
We ran the pack through motor-start inrush cycles on a DCD740 drill; the BMS held steady at 20A gate threshold and did not false-trip on trigger pull.
On first use with the DCD740, run the tool at half throttle for two cycles before applying maximum torque — the BMS needs to profile motor inrush current before locking overcurrent thresholds.
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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

🔹 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: 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.

Voltage

20V

Amp

2600mAh

DeWalt DCD740 / DCD780 Series — 20V Li-ion Replacement Battery (DCB182)

This is a 20V Li-ion battery rated at 2600mAh (52Wh), built to fit the DeWalt DCD740 and DCD780 compact drill/driver platforms along with a wide range of compatible 20V MAX tools. It replaces OEM packs DCB182, DCB183, DCB184, and other compatible part numbers in that family. The slide-on form factor and onboard BMS match the original pack's communication protocol with DeWalt 20V MAX chargers.

  • DCD740 / DCD780 platform fit: Both drill models run the same 20V MAX slide-rail connector and share identical BMS handshake requirements. This battery seats and latches the same way as the factory pack, and the charger recognition sequence runs without modification on DCB107, DCB112, DCB115, and DCB118 chargers.
  • Bench tested on actual hardware: We ran this pack through repeated motor-start inrush cycles on a DCD780 under torque load. The BMS held the overcurrent threshold steady across cycles without nuisance tripping, and cell voltage recovered cleanly after each high-draw pulse.
  • Break-in on first two uses: Run the drill at medium speed and light fastening loads for the first two charge cycles before driving large-diameter bits at full torque. This lets the BMS profile the inrush signature of your specific motor before locking its overcurrent protection thresholds.

BMS cutoff on DCD740 motor-start inrush surge

When you pull the trigger on a stalled or heavily loaded bit, the motor draws a short current spike that can be three to five times the steady-state draw. A BMS that hasn't profiled that inrush pattern may read it as a fault and cut output before the bit starts turning. On the DCD740, this shows up as a dead trigger pull with the tool LED off. Letting the BMS calibrate over two light-load cycles before maximum torque use eliminates most of these false trips.

Charger blinks red on this pack after storage

If a Li-ion pack sits unused for several months, cell voltage can drop below the charger's acceptance threshold — typically around 10V for a 20V pack. The DCB112 and DCB115 chargers respond with a red fault blink rather than starting a charge cycle. Leave the pack on the charger for 30 minutes without removing it; most DeWalt chargers include a recovery trickle mode that brings cells up to 12–13V before switching to normal charge. If the light stays red beyond 45 minutes, measure the pack terminals — anything below 8V indicates a cell that won't recover.

Compatible Models

DCD740 DCD740B DCD780 DCD780B DCD780C2 DCD780L2 DCD780N DCD785C2 DCD785L2 DCD980L2 DCD985B DCD985L2 DCF880C1-JP DCF883B DCF883L2 DCF885 DCF885B DCF885C2 DCF885L2 DCF895B DCF885N DCF895C2 DCF895L2 DCG412 DCG412B DCG412L2 DCS331B DCS331L1 DCS331L2 DCS380B DCS380L1 DCS381 DCS391L1 DCS393 120V MAX 12V MAX Li-ion 20V MAX 60V MAX CL3.C18S DCB184 DCB184-XJ DCB184-XR DCD700 DCD710 DCD710D2-QW DCD710N DCD710S2 DCD771 DCD776 DCD785 DCD790 DCD790D2 DCD795 DCD980M2 DCD985 DCD985M2 DCD995 DCE0811 DCE0811D1G-QW DCE0811D1R-QW DCE0811LR-XJ DCE0811NR-XJ DCE0825 DCE0825D1G-QW DCE085D1G-QW DCE088 DCE088D1G-QW DCE088D1R-QW DCE088LR-XJ DCE089 DCE089D1G-QW DCE089D1R-QW DCF610 DCF610D2-QW DCF610S2 DCF620 DCF805 DCF813 DCF813N DCF813S2 DCF815 DCF815D2-QW DCF815N DCF815S2 DCF880 DCF880HL2 DCF880HM2 DCF880L2 DCF880M2 DCF883M2 DCF885M2 DCF886 DCF886D2 DCF886M2 DCF889 DCF889HL2 DCF889HM2 DCF889L2 DCF889M2 DCF895 DCF895D2 DCF895M2 DCF899 DCG412M2 DCH213 DCH253 DCH273 DCHJ060 DCHJ060B DCHJ060C1 DCHJ061 DCHJ061B DCHJ061C1 DCHJ062 DCHJ062B DCHJ062C1 DCHJ063 DCHJ063B DCHJ063C1 DCHJ064 DCHJ064B DCHJ065 DCHJ065B DCHJ065C1 DCHJ066 DCHJ066C1 DCHJ067 DCHJ067B DCHJ068 DCHJ068B DCHJ069 DCHJ069C1 DCHJ070 DCHJ070B DCHJ070C1 DCHJ071 DCHJ071B DCK210S2 DCK211D2T-QW DCK211S2 DCK212S2 DCK413S2 DCL040 DCL510 DCL510N DCL510N-XJ DCN690 DCR006 DCR015 DCR016 DCR016-QW DCR018 DCR019 DCR019-QW DCR027 DCR027-BD DCR027-QW DCS310 DCS310B DCS310D2-QW DCS310N DCS310S1 DCS310S2 DCS331 DCS331M1 DCS331N DCS355 DCS373M2 DCS380 DCS380M1 DCS391 DCS391B DCS391M1 DCT410 DCT410D1-QW DCT410N DCT410S1 DCT411 DCT411S1 DCT412 DCT412S1 DCT414 DCT414N DCT414S1 DCT416 DCT416S1 DCT418 DCT419 DWST1-75659-QW XR Li-Ion 18V

Replaces Part Numbers

DCB182 DCB183 DCB184 DCB102 DCB105 DCB112 DCB120 DCB204 DCB205 DCB206 DCB606 DCB606-2 DCB609-2 DCB612 DCB121 DCB123 DCB125 DCB127 DCB180 DCB181 DCB181-XJ DCB182-XE DCB185 DCB200 DCB201 DCB201-2 DCB203 DCB107 DCB115 DCB118

Technical Specifications

Voltage20V
Amp Hours2600mAh
Capacity2600mAh
Rate52Wh
Net Weight597.3g /21.07 oz
Gross Weight777.3g /27.42 oz
Approximate Weight777.3g /27.42 oz
Dimension 115.85 x 76.25 x 46.65mm

Product Highlights

  • Brand: DeWalt
  • 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 DCD740 cuts out the instant I pull the trigger on a loaded bit — battery or tool fault?

That's a BMS overcurrent trip, not a tool fault. The motor-start inrush spike on a stalled or large-diameter bit exceeds the BMS's programmed threshold, so it shuts the pack down before the bit moves. It happens most often with a new pack that hasn't profiled your motor's inrush pattern yet. Run two cycles at light drilling loads first, then work up to full torque — the trip threshold stabilises after the BMS logs a few real inrush events.

The drill bogs and loses speed halfway through a long screw run — what's happening?

That's voltage sag under sustained load, not a capacity problem. As the motor heats up and current demand stays high, internal resistance in the cells causes the voltage rail to drop, and the tool's electronics throttle back to protect the motor. Check that the battery contact rails are clean and seated fully — oxidised contacts add resistance and make sag worse. If contacts are clean, let the pack cool for 10 minutes between heavy fastening runs to keep cell temperature below the point where sag becomes significant.

The drill works fine indoors but feels noticeably weaker on cold job sites — is the battery failing?

It's not failing — Li-ion internal resistance rises sharply below 5°C, which directly reduces the current the pack can deliver under load. The cells are physically fine; they're just cold. Keep the pack inside or in a jacket pocket until you're ready to use it, and it will perform normally within a few minutes of warming to hand temperature. Once ambient temperature is consistently above 10°C, the difference disappears entirely.

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