Cramer 40V Cordless Drill Replacement Battery 2000mAh 40V110
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Cramer 40V Cordless Drill Replacement Battery 2000mAh 40V110 - 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.
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.
Cramer 40V Cordless Drill Replacement Battery 2000mAh 40V110 - is backordered and will ship as soon as it is back in stock.
Voltage
40V
Amp
2000mAh
Cramer 40CS12 / 40CS15 Series — 40V Li-ion Replacement Battery (40V110 / 40V220)
This is a 40V 2000mAh Li-ion replacement battery for the Cramer 40V cordless power tool platform. It fits the 40CS12, 40CS15, 40HD61, and 40LM35 series, along with six additional models in the same platform. Voltage and connector match the OEM spec — no adapters needed.
- 40V platform compatibility: The 40CS12, 40CS15, 40HD61, and 40LM35 all share the same 40V battery rail, connector footprint, and BMS communication protocol. One pack covers the full tool lineup without modification.
- Bench tested on actual hardware: We cycled this pack through repeated motor-start inrush loads on a 40V platform tool. The BMS handled the trigger-pull current spike without tripping, and cell voltage recovery between pulls stayed within the expected window for a 2000mAh Li-ion pack.
- Motor-start conditioning on first use: Run the tool at half load — lighter drilling or trimming work — for the first two charge cycles before hitting maximum torque. This lets the BMS profile the inrush current draw from your specific motor before it locks in overcurrent protection thresholds.
BMS cutoff on motor-start inrush surge in 40V drills and saws
When you pull the trigger on a circular saw or hammer drill, the motor draws a short spike of current — often three to five times the running draw. On a 2000mAh pack, the BMS overcurrent threshold is set tighter than on higher-capacity packs because the cells have less thermal headroom. If the pack shuts off the instant you pull the trigger, the BMS has tripped on that inrush spike. Let the pack sit for 60 seconds, then re-seat it firmly — a loose rail contact increases apparent resistance and pushes the spike higher than the BMS expects.
Charger not recognising the new pack after storage
Li-ion cells discharge slowly during shipping and warehouse storage. If the cell voltage drops below roughly 2.5V per cell, most Cramer chargers will reject the pack — the charge LED blinks red and never transitions to charging. This is a charger acceptance threshold, not a dead battery. Connect the pack to the charger and leave it for up to 30 minutes — some chargers trickle a recovery current before switching to full charge mode. If the charger still refuses after 30 minutes, check that the terminal pins on the battery and charger port are clean and fully making contact.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Cramer
- Manufacturer: CS
- Series: Standard
- Color: Green/Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My Cramer 40CS12 cuts out the instant I pull the trigger on a heavy cut — why does a brand-new battery do this?
That's a BMS overcurrent trip, not a faulty battery. The motor-start inrush current on a circular saw or drill peaks sharply, and on a 2000mAh pack the overcurrent threshold is tighter than on larger-capacity packs. Remove the battery, wait 60 seconds, then re-seat it firmly — a loose rail contact raises apparent resistance and amplifies the spike. Run a lighter load first for two cycles to let the BMS calibrate to your motor's inrush profile before pushing maximum torque.
The tool bogs down and loses power under sustained load even though the battery shows charged — what causes that?
Voltage sag under load is the cause. When the cells are under sustained heavy draw — long cuts, thick stock, tough fasteners — the voltage rail drops temporarily, and the tool loses torque. Start by cleaning the battery terminal contacts on both the pack and the tool with a dry cloth; rail contact resistance is the most common amplifier of sag on this platform. If contacts are clean, the cells may have entered capacity fade from repeated shallow cycling — partial charges before the pack drops below 50% accelerate this. Run the pack to a full low-charge state before recharging to slow further degradation.
The 40V Cramer battery cuts out mid-use on cold mornings but works fine once the tool warms up — is that normal?
Yes, this is expected Li-ion behaviour below 5°C. Internal resistance in lithium-ion cells rises significantly in cold temperatures, which causes the voltage to sag faster under load and can trip the BMS thermal or undervoltage protection even on a fully charged pack. Store the battery indoors at room temperature before use rather than leaving it in a cold shed or vehicle overnight. After five to ten minutes of light use the cells warm up, resistance drops, and full power returns.
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