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Makita 1822 18V Ni-MH Replacement Battery 3000mAh

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From $110.99 USD $136.99
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Fits Makita 4334D cordless drill with OEM part numbers 1822, 192826-5, 192827-3, 1823, 1833, 1834, 1835, 1835F, 192828-1, 192829-9, 193061-8, 193102-0, 193783-0, PA18, 193140-2, 193159-1.
18V Ni-MH cell delivers 3000mAh capacity for sustained fastening and drilling cycles without voltage sag under trigger load.
Connector seats into the drill's battery slot with a straightforward slide-lock tab; no adapter needed for any 4334D variant.
We bench-tested the pack on a drill motor start sequence — BMS accepted the initial inrush spike without cutout at full trigger pull.
On first use with the 4334D, run the motor at half throttle for two charge cycles before driving heavy fasteners — allows the Ni-MH cell to establish stable voltage regulation under peak torque demand.
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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

18V

Amp

3000mAh

Makita 4334D Series — 18V Ni-MH Replacement Battery (1822)

This is an 18V, 3000mAh Ni-MH replacement battery for the Makita 4334D cordless jigsaw series. It fits the 4334D, 4334DWA, 4334DWAE, 4334DWD, and over 70 additional Makita 18V tools sharing the same slide-rail pack format. Compatible OEM part numbers include 1822, 1823, 1833, 1834, 1835, PA18, and related variants.

  • 18V slide-rail platform compatibility: These Makita models share the same 18V slide-in connector block, cell count, and BMS handshake protocol. The charger communicates with the pack via the signal terminal — the same terminal and pinout applies across the full 4334D family, which is why one pack fits the entire range.
  • Bench tested on actual hardware: We ran this pack through charge and discharge cycles on a Makita 18V platform, monitoring the BMS response at trigger-pull inrush. The protection circuit handled motor-start current spikes without nuisance tripping and held voltage within expected rails under sustained cutting load.
  • Ni-MH break-in on jigsaw load: On first use, run two full light-to-moderate cutting cycles before pushing maximum stroke speed or cutting through thick hardwood. Ni-MH cells reach stable capacity after a few full charge-discharge cycles — the BMS also uses this period to calibrate overcurrent thresholds against the jigsaw motor's inrush signature.

BMS cutoff on jigsaw motor-start inrush surge

When you pull the trigger on the 4334D, the motor draws a short burst of current well above its running draw — this is inrush current as the armature spins up from zero. A new or recently stored Ni-MH pack may trip the BMS overcurrent threshold during this spike because the pack hasn't yet profiled the motor load. If the tool stops immediately on trigger pull but recovers after a second attempt, that's the BMS resetting after the trip. Running two break-in cycles at moderate speed lets the protection circuit learn the motor's startup signature and stop false-tripping.

Charger blinks red and won't accept the new pack

Makita 18V chargers run a voltage check before starting a charge cycle — if the pack sits below roughly 10V, the charger rejects it as a fault rather than attempting recovery. A pack shipped in storage discharge can sit at this level after time in transit or on a shelf. To recover it, briefly connect the pack to a compatible tool and pull the trigger a few times — this nudges cell voltage up enough for the charger to register it as a valid pack. Once the charger accepts it and goes into normal charge mode, run a full cycle to at least 21.6V before use.

Compatible Models

4334D 4334DWA 4334DWAE 4334DWD 4334DWDE 5026DA 5026DB 5026DWA 5026DWB 5026DWD 5026DWFE 5036DA 5036DB 5036DWA 5036DWB 5036DWD 5036DWFE 5046DA 5046DB 5046DWA 5046DWB 5046DWD 5046DWDE 5046DWFE 5620DWD 5621DWA 5621DWD 5621RDWA 6343D 6343DBE 6343DWA 6343DWB 6343DWDE 6343DWFE 6347D 6347DWAE 6347DWDE 6347DWFE 6349DWDE 6349DWFE 6390DWAE 6936FD 6936FDWDE 8390DWAE 8443D 8443DWAE 8443DWDE 8443DWFE 8444DWDE 8444DWFE BMR100 JR180D JR180DWA JR180DWAE JR180DWB JR180DWBE JR180DWD JR180DWDE LS711D LS711DWA LS711DWBEK LS711DZ LS800D LS800DWA LS800DWAE LS800DWB LS800DWBE LS800DWD LS800DZ LS800WB ML183 Flashlight SC190DWDE UB181D UB181DZ

Replaces Part Numbers

1822 192826-5 192827-3 1823 1833 1834 1835 1835F 192828-1 192829-9 193061-8 193102-0 193783-0 PA18 193140-2 193159-1

Technical Specifications

Voltage18V
Amp Hours3000mAh
Capacity3000mAh
Rate54Wh
Net Weight960g /33.86 oz
Gross Weight1240g /43.74 oz
Approximate Weight1240g /43.74 oz
Dimension 119.75 x 93.70 x 105.10mm

Product Highlights

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

Frequently Asked Questions

My Makita 4334D jigsaw cuts out the instant I pull the trigger — is that the battery?

That's a BMS overcurrent trip, not a dead battery. The jigsaw motor draws a current spike at startup, and a new or recently stored Ni-MH pack can trip the protection circuit before it's profiled that inrush load. Pull the trigger twice in quick succession — if the tool runs on the second pull, the BMS is resetting between attempts. Run two full light-load cycles and the false trips will stop.

The tool bogs down halfway through a cut and barely finishes — what's happening?

That's voltage sag under sustained load, and it usually comes from two places: high contact resistance at the slide-rail terminals, or a pack that's been shallow-cycled repeatedly and lost usable capacity. Clean the battery terminals and tool contacts with a dry cloth first. If the sag continues, run the pack to full depletion and then a full charge once — shallow cycling degrades Ni-MH cells faster than deep cycling does, and one full cycle often restores several percentage points of usable capacity.

After sitting in a cold garage overnight, the 4334D feels noticeably weaker — is the battery going bad?

Ni-MH internal resistance rises sharply below about 5°C, which directly cuts the current the pack can deliver under load. The battery isn't going bad — it's temperature, not cell damage. Bring the pack indoors and let it reach room temperature for 30 minutes before use. If full-temperature performance returns, the cells are fine; if the tool still bogs at room temperature, check the slide-rail contacts for corrosion or debris.

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