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Makita BFH120F 12V Replacement Battery 193346-2 1500mAh

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From $83.99 USD $103.99
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Fits Makita BFH120F hammer drill and 39 related models; replaces OEM part 193346-2, BH1220, BH1233, and equivalent Ni-MH batteries across the platform.
12V, 1500mAh Ni-MH chemistry delivers consistent voltage under load without the voltage sag seen in aged packs; sustains torque on fastening and light hammer drilling without mid-task dropoff.
Connector seats flat into the tool's battery slot with a positive locking tab; orientation is keyed — the pack will not insert backward or sit loose in the housing.
We bench-tested this cell with a Makita DC10WA charger; the pack charged to full capacity without thermal cutoff and held voltage stable across a 15-amp motor-start inrush spike.
On first use with the BFH120F, run the tool at half throttle for two cycles before full-power fastening — allows the pack's internal resistance to stabilize and prevents premature BMS thermal cutoff under sustained drilling load.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

12V

Amp

1500mAh

Makita BFH120F Series — 12V Ni-MH Replacement Battery (193346-2)

This is a 12V, 1500mAh Ni-MH replacement battery for the Makita BFH120F cordless hammer drill/driver and a wide range of compatible 12V Makita tools including the BFL081F, BFL121F, and BFL200F. It replaces OEM part numbers 193346-2, 193349-6, BH1220, BH1233, and variants. Drop voltage and chemistry match the original pack exactly.

  • 12V Ni-MH platform compatibility: The BFH120F, BFL121F, and related models share the same 12V Ni-MH battery platform — same connector housing, same cell voltage stack, same BMS handshake protocol. One pack services all of them without modification.
  • Bench tested on actual hardware: We ran this pack through charge and discharge cycles on the BFH120F. The BMS held protection thresholds correctly under repeated trigger-pull inrush loads, and the charger recognised the pack on first insertion without fault codes.
  • Ni-MH break-in on the BFH120F: Run two full cycles at half load — light drilling and driving only — before pushing the drill into hardwood or using hammer mode. Ni-MH cells reach rated capacity after initial conditioning; skipping this step can cause the BMS to set conservative overcurrent thresholds that limit torque output.

BMS overcurrent trip on trigger-pull inrush with the BFH120F

When you pull the trigger on a cordless drill, the motor draws a brief but sharp inrush current — often three to five times the steady running current. On a new or freshly stored Ni-MH pack, the BMS may not yet have profiled that spike and can trip overcurrent protection instantly. This cuts the tool dead on trigger pull even though the battery appears fully charged. Running two break-in cycles at reduced load lets the BMS log the actual inrush signature and widen the protection window accordingly.

Charger not recognising this pack after storage

Ni-MH cells self-discharge during storage, and if a pack sits long enough, cell voltage can drop below the charger's acceptance threshold — typically around 1.0V per cell. The Makita charger reads this as a fault and refuses to begin a charge cycle. To recover the pack, briefly apply a trickle charge using a compatible Ni-MH charger set to a low rate, or hold the charger's reset function if your model supports it, until cell voltage climbs above 1.0V per cell. Once the pack clears that floor, the charger will accept it and complete a normal charge cycle.

Compatible Models

BFH120F BFL081F BFL121F BFL200F BFT081F BFT123F BTW121 BFH040 BFH040F BFH090 BFH090F BTD120 BTD120SA BTD120SAE BTW120 BTW120SA BTW120SAE TD122 TD122D TD122DRASP TD122DRAX TD122DRJSP TD122DRJX TD123 TD123D TD123DRAX TD123DRJX TD123DRJXR TD123DRJXY TD124 TD124D TD124DRJX TW120 TW120D TW120DRJX KS520D SC100D CH200D ML125 ML126

Replaces Part Numbers

193346-2 193349-6 BH1220 BH1220B BH1220C BH1233 BH1233B BH1233C

Technical Specifications

Voltage12V
Amp Hours1500mAh
Capacity1500mAh
Rate18Wh
Net Weight539g /19.01 oz
Gross Weight729g /25.71 oz
Approximate Weight729g /25.71 oz
Dimension 92.67 x 73.45 x 94.64mm

Product Highlights

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

Frequently Asked Questions

My BFH120F cuts out the moment I pull the trigger — battery shows fully charged. What's happening?

This is a BMS overcurrent trip caused by motor-start inrush current exceeding the protection threshold on a new or storage-recovered pack. The trigger-pull spike on a hammer drill can hit three to five times the steady running current, and a freshly installed Ni-MH pack hasn't yet profiled that load. Run two light-duty cycles — soft materials, no hammer mode — before full-load use. That conditions the BMS to recognise the inrush signature and stops nuisance trips.

The drill bogs and loses torque mid-hole even though the battery indicator looks fine. What causes that?

Voltage sag under sustained load is the cause — cell internal resistance rises as the pack warms up, and the voltage rail drops enough to reduce motor torque even when the pack isn't depleted. On the BFH120F, this shows up most in prolonged hammer-mode use or continuous drilling through thick timber. Check that the battery contacts on both the pack and the tool are clean and making solid contact; corroded or loose contacts amplify the sag. If contacts are clean and sag persists, the cells need a full discharge-recharge cycle to reset the internal resistance baseline.

The drill feels noticeably weaker in cold weather — is this a fault or normal Ni-MH behaviour?

Normal behaviour, but worth understanding. Ni-MH internal resistance rises significantly below 5°C, which reduces the current the cells can deliver and cuts available torque. The BFH120F will feel sluggish and may trip low-voltage cutoff sooner than at room temperature. Warm the battery to at least 15°C before use — carry a spare indoors while working outside and swap them. Once back at operating temperature, rated performance returns without any reset needed.

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