Pressfit Lynx 18V Replacement Battery 2000mAh Li-ion

Pressfit Lynx / Puma Series — 18V Li-ion Replacement Battery

This 18V 2000mAh (36Wh) Li-ion battery fits the Pressfit Lynx, Lynx RR, Puma, and Puma-RR cordless power tools. It slots into the same battery bay and connects to the same 18V rail these platforms share. Voltage and capacity match the original factory specification.

• Lynx and Puma platform compatibility: The Lynx, Lynx RR, Puma, and Puma-RR all run the same 18V battery rail and use the same connector and BMS handshake protocol. One battery works across all four models without any adapters or firmware differences to navigate.
• Bench tested on actual hardware: We ran this pack on a Lynx drill and cycled it through repeated trigger pulls at full torque. The BMS handled motor-start inrush current without tripping and held voltage within the expected discharge curve across the full cycle.
• Motor inrush break-in: On first use, run the tool at half load for two cycles before full-torque applications. This lets the BMS log the motor's inrush current signature and set overcurrent thresholds accurately — reducing nuisance trips on hard starts later.

BMS cutoff on drill motor-start inrush surge

When you pull the trigger on a cordless drill, the motor draws a spike of current — often three to five times the running current — before it reaches operating speed. If the BMS has not yet profiled that inrush, it can read the spike as a fault and cut the circuit immediately. This pack's BMS is rated for the inrush profile of the Lynx and Puma motors. Running two half-load break-in cycles before demanding full torque gives the BMS the data it needs to stop treating normal motor start-up as an overcurrent event.

Tool bogs under load and voltage drops noticeably

A drill or driver that runs fine at idle but loses torque under load is showing voltage sag — the cell voltage drops faster than it should when current demand rises. The most common cause on older tools is high contact resistance at the battery terminal, not a failed cell. Clean the battery bay terminals with isopropyl alcohol and check for oxidation or debris before assuming the pack is faulty. If the resting voltage reads above 17V after a full charge but sag under load is still heavy, check the tool's motor brushes or driver electronics for additional resistance in the circuit.