How to Replace Battery
Learn how to replace battery with our detailed step-by-step guide. Follow our easy instructions to get it done right.
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0 of 6 steps completedStep-by-Step Instructions
1 Step 1: Test Battery Before Replacing
Step 1: Test Battery Before Replacing
Use multimeter or load tester to verify battery is actually bad (should read 12.4V+ when off).
Digital Multimeter
Voltage tester for checking battery condition
Battery Load Tester
Tester for checking battery under load
2 Step 2: Purchase Correct Replacement Battery
Step 2: Purchase Correct Replacement Battery
Get battery with correct group size, CCA rating, and terminal configuration for your vehicle.
Car Battery
Replacement battery for your vehicle (varies by size)
3 Step 3: Disconnect Negative Terminal First
Step 3: Disconnect Negative Terminal First
Always remove negative (-) cable first to prevent shorts, then remove positive (+).
Battery Terminal Wrench
Wrench for loosening battery cable clamps
4 Step 4: Remove Battery Hold-Down
Step 4: Remove Battery Hold-Down
Unbolt or unclamp battery hold-down bracket securing battery in tray.
Socket Set
Tools for removing hold-down bracket
5 Step 5: Install New Battery
Step 5: Install New Battery
Place new battery in tray, secure hold-down, connect positive first, then negative.
Battery Terminal Cleaner
Brush for cleaning battery terminals and cables
Dielectric Grease
Grease for protecting battery terminals from corrosion
6 Step 6: Reset Radio and Windows
Step 6: Reset Radio and Windows
After battery replacement, reset radio presets and auto-up windows per vehicle procedure.