Northern Lights — SP-17 and 18 Battery Care
Maintenance · Batteries
From a Northern Lights owner's manual covering: 844DW3, 844LW3, M20CRW3, M844DW3, M844LW3, M844W3. Check it applies to your exact model before use.
Applies to: Northern Lights M20CRW3, Northern Lights M844DW3, Northern Lights M844LW3, Northern Lights M844W3, Northern Lights 844 (844L for LW models) engine, Northern Lights 844L engine
Before you start
- Battery gas can explode. Keep all flames and sparks away from batteries.
- Battery electrolyte is sulfuric acid diluted, which can burn or stain body or clothes.
Procedure
- Add distilled water to manufacturer's recommended level.
- Check and clean batteries, cables and cable terminals every 100 hours; clean corrosion with water and baking soda solution; flush; tighten and grease terminals.
- Check battery condition with a hydrometer every 500 hours.
Tools required
- Hydrometer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Checked and cleaned every 100 hours
- Hydrometer check every 500 hours
Full service-parts list: Northern Lights M20CRW3 →, Northern Lights M844DW3 →, Northern Lights M844LW3 →, Northern Lights M844W3 →
Source: Northern Lights owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.