Bosch 12V Ni-MH Replacement Battery 2607335055 1500mAh
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Bosch 12V Ni-MH Replacement Battery 2607335055 1500mAh - 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.
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Delivery and Shipping
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Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Bosch 12V Ni-MH Replacement Battery 2607335055 1500mAh - is backordered and will ship as soon as it is back in stock.
Voltage
12V
Amp
1500mAh
Bosch 3300K / 3305K Series — 12V Ni-MH Replacement Battery (2 607 335 055)
This is a 12V, 1500mAh Ni-MH replacement battery for the Bosch 3300K, 3305K, 3310K, and 330K cordless drill/driver series. It matches the original pack voltage and connector footprint. Cross-references include BAT011, BH1214MH, and 26 additional OEM part numbers covering the full 12V Ni-MH platform.
- 12V Ni-MH platform compatibility: The 3300K, 3305K, 3310K, and 330K share a common 12V rail, connector geometry, and BMS handshake protocol — one cell pack design covers the entire group without modification.
- Bench tested on actual hardware: We cycled this pack through repeated trigger-pull sequences on a 3305K. The BMS held inrush current within spec on each start, and cell temperature stayed within normal range across sustained fastening runs.
- Ni-MH motor break-in on the 3300K platform: On first use, run the drill at half load for two full discharge-charge cycles before applying maximum torque. This lets the BMS profile the motor's inrush current draw and set accurate overcurrent thresholds before heavy-duty use.
BMS overcurrent trip on trigger-pull inrush — why the 3300K cuts out instantly
The 3300K motor pulls a short inrush spike the moment you squeeze the trigger — often three to five times the running current. On a new or cold pack, the BMS may read that spike as an overcurrent fault and cut power before the motor completes one rotation. Ni-MH cells have lower internal resistance than older Ni-Cd packs, but a fresh pack straight from storage hasn't been profiled by the BMS yet. Running two half-load break-in cycles lets the BMS calibrate its trip threshold to the actual motor signature and stop false cutoffs.
Tool bogs or loses torque mid-screw — voltage sag under load
If the drill starts strong then weakens as the fastener tightens, voltage sag is the likely cause. High contact resistance at the battery terminals or worn brush contacts inside the tool causes the rail voltage to drop under sustained load. Clean the battery contact points on both the pack and the drill with isopropyl alcohol and check for carbon buildup on the motor brushes. Rail voltage on a healthy 12V Ni-MH pack under load should hold above 10.5V — measure at the terminals while the motor is running.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Bosch
- 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 Bosch 3300K cuts out the instant I pull the trigger — is the new battery faulty?
It's almost always a BMS overcurrent trip, not a faulty cell. The 3300K motor draws a sharp inrush spike on trigger pull, and a new pack straight from storage hasn't been profiled by the drill's BMS yet. Run two full cycles at half load first — light drilling, no high-torque fastening — so the BMS can set an accurate overcurrent threshold. After those cycles, full-trigger cutouts on a healthy pack stop.
The charger never recognises the new pack — no lights come on at all.
Ni-MH packs that sit in storage can drop below the voltage floor the charger uses to detect a valid battery. If the pack measures below roughly 8V at the terminals, most Bosch 12V chargers won't initiate a charge cycle. Connect the pack to the charger, wait 10 minutes — some units trickle-charge silently before the indicator lights. If there's still no response, measure terminal voltage; anything above 8V should trigger recognition on the next charger connection.
The drill runs fine at first but bogs badly when I'm driving long screws into hardwood — what's happening?
This is voltage sag under sustained high-torque load. As the fastener bites deeper, motor current climbs and the battery rail voltage drops — if contact resistance at the terminals is high, the drop is worse. Pull the pack and clean both the drill and battery contact points with isopropyl alcohol, removing any oxidation. Under load, the 12V Ni-MH rail should hold above 10.5V; if it drops below that with clean contacts, the cells have lost capacity from repeated shallow cycling and the pack needs replacing.
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