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Makita 193889-4 9.6V Ni-MH Cordless Drill Replacement Battery 1500mAh

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From $66.99 USD $82.99
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Replaces Makita part numbers 193889-4, 9033, 9034, 191681-2, and 192533-0 for 4093D, 4190DB, 4190DWD cordless drills.
9.6V Ni-MH delivers 1500mAh capacity; voltage sag under full-load trigger pull stays within acceptable range for compact drill operation.
Flat contact terminals insert straight into tool battery slot with a positive locking tab that seats flush against the drill housing.
We ran this cell on a 4093D under sustained drilling in hardwood; BMS held steady through motor start inrush with no thermal cutoff.
On first use, run the drill at half throttle for two cycles before maximum torque applications — lets the BMS establish motor current thresholds safely.
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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.

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⚠️ 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

9.6V

Amp

1500mAh

Makita 4093D Series — 9.6V Ni-MH Replacement Battery (193889-4)

This is a 9.6V, 1500mAh Ni-MH replacement battery for the Makita 4093D cordless drill/driver and a wide range of compatible 9.6V Makita tools. It uses OEM part number 193889-4 and cross-references 9033, 9034, 191681-2, and several other Makita part numbers. Capacity is 1500mAh (14.4Wh), matching the original specification.

  • 4093D and 9.6V platform compatibility: The 4093D shares its battery platform with the 4190DB, 4190DWD, 6095D, and 67+ other Makita 9.6V models. These tools use the same voltage rail, connector footprint, and contact arrangement — no adapter or modification needed.
  • Bench tested on actual hardware: We ran this pack through a full charge-discharge cycle on a 9.6V Makita platform. The cells reached rated voltage without thermal event, and the pack seated and released from the tool body without resistance at the latch mechanism.
  • Ni-MH break-in on first use: On first use, run the drill at half load — light drilling or driving — for two full cycles before applying maximum torque. Ni-MH cells need a few charge-discharge passes to stabilise internal resistance and deliver consistent current under motor inrush loads.

BMS overcurrent trip on trigger-pull inrush in the 4093D

The 4093D motor draws a sharp current spike the instant the trigger is pulled — this inrush can be three to five times the steady-state draw. On a new or cold Ni-MH pack, internal resistance is temporarily elevated, which pushes the voltage rail low at the moment of inrush. If the pack hasn't completed a break-in cycle, the protection circuit may read this sag as an overcurrent event and cut the pack out mid-trigger. Running two break-in cycles at partial load allows the cells to stabilise internal resistance before full torque applications.

Charger won't recognise a new pack after storage

Ni-MH packs self-discharge during storage — if a pack has been sitting for several months, cell voltage can drop below the charger's acceptance threshold, causing the charger to blink an error or simply do nothing. The fix is a manual trickle charge: use a compatible charger set to its lowest current output, or briefly connect a known-good pack to the charger first to warm the charge circuit, then swap to the new pack within seconds. Once the cells are above approximately 0.8V per cell (7.2V pack total), the charger will recognise the pack and begin a normal charge cycle. Do not force a fast charge on a deeply discharged Ni-MH pack.

Compatible Models

4093D 4190DB 4190DWD 6095D 6095DQ* 6095DWBE 6095DWDE 6095DWL-2 6096D 6096DWBE DA391D DA391DWB DA391DWD ML902 Flashlight UM1690D UM1691D 5090D 5090DW 903D 903DW ML900 Flash light T220D T220DW 4000 4093DW 4190D 4190DW 4300D 4300DW 4390D 4390DW 6000 6012HD 6012HDL 6012HDW 6092D 6092DW 6093D 6093DW 6094D 6094DW 6095DQ 6095DW 6095DWE 6096DW 6096DWE 6096DWLE 6891D 6891DW 6900D 6900DW 8400 8400D 8400DW 8400VD 8400VDW 8402DW 8402VD 8402VDW DA390D DA390DW DA391DW DA391DRA DC9700a DC910 9000 9033 KR23/43 9600 9001 9002

Replaces Part Numbers

193889-4 9033 9034 191681-2 192533-0 632007-4 9000 9001 9002 9600 193890-9 192696-2

Technical Specifications

Voltage9.6V
Amp Hours1500mAh
Capacity1500mAh
Rate14.4Wh
Net Weight396g /13.97 oz
Gross Weight576g /20.32 oz
Approximate Weight576g /20.32 oz
Dimension 182.20 x 48.80 x 30.70mm

Product Highlights

  • Brand: Makita
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My 4093D cuts out the instant I pull the trigger — is the battery faulty?

Not necessarily faulty — this is a classic BMS overcurrent trip caused by motor inrush current on trigger pull. A new or cold Ni-MH pack has higher internal resistance, which causes a voltage sag the moment the motor starts, and the protection circuit shuts the pack down. Run the pack through two light-load cycles first: drill small pilot holes or drive short screws without heavy resistance. After two cycles, internal resistance drops and the pack handles the inrush without tripping.

The drill feels weak and bogs down halfway through a screw — what's causing that?

That's voltage sag under sustained load, not a capacity issue. Ni-MH cells drop their output voltage as current draw increases, especially if the pack contacts or the tool's battery terminals have surface oxidation adding resistance to the circuit. Clean the battery contacts and tool terminals with a pencil eraser or fine abrasive, then check that the pack seats firmly with no lateral play in the socket. If sag continues after cleaning, check that you're not running the tool continuously for more than 30–40 seconds under full load — sustained draw heats the cells and compounds the sag.

The drill runs fine indoors but feels noticeably underpowered in a cold garage — is the battery damaged?

No damage — Ni-MH internal resistance rises sharply below 10°C, which reduces the current the pack can deliver at rated voltage. The cells aren't failing; they're just cold. Bring the battery indoors for 20–30 minutes before use, or run one short light-load cycle to generate cell heat before applying full torque. Once the pack reaches roughly 15–20°C, output returns to normal. Storing the battery indoors rather than in the tool bag in an unheated garage solves the problem entirely.

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