Battery Runtime Is Much Shorter Than Before After A Normal Full Charge

The saw starts and cuts normally at first, but a fully indicated pack completes far fewer comparable cuts than it previously did.

• Battery has lost usable capacity through age or cycle history
• Cold pack, wet or dense lumber, deep cuts, or a dull blade is increasing normal energy use
• Contacts are dirty or the pack was not actually fully charged
• Internal motor or bearing drag is drawing excessive current

1. Under the same controlled cutting setup, the proven pack delivers repeatable useful runtime without abnormal heat or rapid loss of speed.

1. - Remove any pack that is hot, swollen, cracked, wet, leaking, or scorched - otherwise let it reach normal room temperature and charge it fully.
2. Clean the pack and saw interfaces dry, fit a sharp correct blade, and repeat a documented light-cut comparison in similar dry wood.
3. Repeat the same cut count and setup with a known-good fully charged compatible pack.
4. - Replace or service the pack that consistently delivers much less work - if both proven packs drain abnormally fast, keep the saw closed and request authoriz

This is a preview of the troubleshooting guidance included in the full repair manual.

• FM-03: Fm Dcs578 03

• root cause analysis
• tools needed
• step-by-step repair procedure
• diagrams
• exploded views
• post-repair checks

Public pages show a preview only. Purchase the full manual to download complete repair steps, diagrams, and verification procedures.