Alpina BT 4024 24V Replacement Battery 2000mAh Li-ion
Check that your old battery model number and device model to match our description. This makes sure they work together.
We ship your order same day if you buy it before 4 PM EST.
Alpina BT 4024 24V Replacement Battery 2000mAh Li-ion - is backordered and will ship as soon as it is back in stock.
Let customers speak for us
Send Your Battery Photo
Expert Technician Help
Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR BATTERY IMAGE
Product & Solutions Expert
✉ sales@batteryweb.com
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.
Delivery and Shipping
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
⚠️ 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.
Alpina BT 4024 24V Replacement Battery 2000mAh Li-ion - is backordered and will ship as soon as it is back in stock.
Voltage
24V
Amp
2000mAh
Alpina BLA 24 Li Series — 24V Li-ion Replacement Battery (BT 4024)
This is a 24V 2000mAh (48Wh) lithium-ion battery for the Alpina BLA 24 Li, C 24 Li, H 24 Li, and MT 24 Li cordless power tool range. It replaces OEM part numbers BT 4024 and 270401020. Fits the original battery slot and works with the same charger used for the factory pack.
- Cross-model compatibility across the 24 Li platform: The BLA 24 Li, C 24 Li, H 24 Li, and MT 24 Li all share the same 24V battery rail, connector pinout, and BMS handshake protocol — that is why one pack covers all four. Swapping between tools on the same platform works without reconfiguration.
- Bench tested on actual hardware: We ran this pack under repeated motor-start inrush cycles on a 24V drill platform. The BMS handled the current spike on trigger pull without tripping, and cell voltage recovered cleanly after each discharge event.
- First two cycles on a new pack: On first use, run the tool at half load for two cycles before applying maximum torque. This lets the BMS log the motor inrush current profile and set accurate overcurrent thresholds before you push it into heavy drilling or cutting.
BMS cutoff on motor-start inrush in the 24 Li drill and saw range
When you pull the trigger on a drill or circular saw, the motor draws a surge of current before it reaches operating speed. On 24V Li-ion packs, this inrush spike can briefly exceed the BMS overcurrent threshold if the cells are cold or if the pack has been sitting discharged. The BMS interprets this as a fault and shuts the output rail down in under a millisecond. A short rest of 10–15 seconds, then a slow trigger pull, usually resets the latch and lets the pack recover without a charger cycle.
Charger blinking red and refusing to accept the pack after storage
Most Alpina 24V chargers have a minimum acceptance voltage below which they will not begin a charge cycle — typically around 16–18V on a 24V pack. If the pack has self-discharged during storage, cell voltage can drop below that threshold, and the charger signals the refusal with a continuous or blinking red LED. Connect the pack and leave it on the charger for 5–10 minutes — some chargers run a trickle pre-charge mode that brings the cells back above the acceptance floor before switching to normal charge. If the red LED persists past 15 minutes, check cell voltage at the terminal with a multimeter; a reading below 14V indicates the pack has deep-discharged past recovery.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Alpina
- Manufacturer: CS
- Series: Standard
- Color: Green
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My Alpina BLA 24 Li drill cuts out the instant I pull the trigger — is the battery faulty?
This is a BMS overcurrent trip, not a cell failure. The motor-start inrush current spike on trigger pull briefly exceeds the BMS protection threshold, especially when the pack is cold or freshly installed. Wait 15 seconds, then pull the trigger slowly rather than snapping it full. If the cut-out keeps happening, warm the pack to room temperature — Li-ion internal resistance drops significantly above 10°C and the inrush spike becomes easier for the BMS to absorb.
The tool runs but bogs down badly under load — full charge shows on the indicator but it feels weak.
This is voltage sag, not a capacity problem. Under sustained load on a drill or saw, the 24V rail can sag if there is high resistance at the battery contact points. Clean the gold contacts on both the pack and the tool with a dry cloth, then check whether the bogging improves on a fresh charge cycle. If sag continues after cleaning, check the terminal voltage at the pack under load with a multimeter — a healthy 24V Li-ion pack should hold above 21V under moderate tool load.
After leaving the Alpina battery unused for two months, the charger won't start charging — just flashes red.
The pack has self-discharged below the charger's minimum acceptance voltage. Leave the pack connected to the charger for up to 15 minutes — most Alpina 24V chargers run a low-current pre-charge trickle that nudges cells back above the acceptance threshold before switching to a full charge cycle. If the red light does not change within 15 minutes, measure the voltage at the pack terminals with a multimeter. A reading above 14V means the pre-charge trickle should eventually recover it; below 14V means the cells have deep-discharged past the recovery window.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
