Next Tech DX2 Replacement Battery 25.9V 2600mAh 015E00600A

Techline Next Tech DX2 — 25.9V Li-ion Replacement Battery (015E00600A)

This is a 25.9V 2600mAh (67.34Wh) Li-ion replacement battery for the Techline Next Tech DX2 cordless lawn mower. It also fits the Next Tech LX2, SX2, and D1, along with five additional models in the same platform. Use OEM part number 015E00600A to confirm fitment before ordering.

• Next Tech DX2 / LX2 / SX2 platform: These models share a common 25.9V battery rail and the same BMS communication protocol. The connector pinout and cell group configuration are identical across the range, so one pack covers the full lineup without adapter modifications.
• Bench tested on actual hardware: We ran this pack through full charge and discharge cycles on a DX2 deck. The BMS handled motor inrush current on startup without false tripping, and cell balancing completed correctly at end-of-charge.
• Seasonal storage before first spring use: If the mower sat in an unheated garage through winter, bring the battery indoors overnight before charging. Li-ion cells below 10°C have higher internal resistance, and the blade motor's inrush current on a cold pack can trip the BMS before the mower completes a single row.

BMS cutoff on thick-grass or wet-grass blade load

The DX2 blade motor draws significantly more current through dense or wet grass than on a dry, short lawn. If the instantaneous draw exceeds the BMS threshold — typically caused by a blade bogging through heavy clippings — the pack cuts power as a protection response. This is not a battery fault; it is the BMS preventing cell damage from sustained overcurrent. Slow your mowing pace in thick sections and allow the motor to run freely before pushing into dense growth.

Charger showing a fault light after the mower sat all winter

Li-ion packs self-discharge slowly during storage. A pack that sat unused for four to six months may drop below the charger's acceptance voltage threshold — usually around 20V for a 25.9V pack — causing the charger to display a fault or refuse to initiate a charge cycle. Some chargers recover the pack automatically with a slow pre-charge pulse; if yours does not, check the pack's resting voltage with a multimeter. A reading above 20V means the pack is recoverable — start a charge cycle and monitor the first 10 minutes for the fault light to clear.