Lenovo 45N1100 28Wh Battery Replacement Guide
Find the perfect replacement battery for your Lenovo ThinkPad Helix with our comprehensive compatibility guide and expert advice for Australian and New Zealand users.
Battery models & part numbers
| Reference / P/N |
|---|
| 45N1100 |
| 45N1101 |
| Lenovo-45N1100-28Wh |
Compatible laptop models
| Model |
|---|
| Lenovo ThinkPad Helix 3697 |
| Lenovo ThinkPad Helix 3698 |
| Lenovo ThinkPad Helix 3700 |
| Lenovo ThinkPad Helix 3701 |
| Lenovo ThinkPad Helix 3702 |
| Lenovo ThinkPad Helix N3Y4DGE |
| Lenovo ThinkPad Helix N3Z6CGE |
| Lenovo ThinkPad Helix N3Z6DGE |
| Lenovo ThinkPad Helix N4B4MGE |
| Lenovo ThinkPad Helix Type 3xxx |
Introduction
The Lenovo 45N1100 28Wh battery is a high-quality replacement designed specifically for various ThinkPad Helix models. This genuine-compatible battery ensures optimal performance and reliability for your business or personal computing needs.
Common signs you need a replacement
| Symptom | Cause | Verification | Recommendation |
|---|---|---|---|
| Battery drains quickly | Ageing cells | Check battery health in system settings | Replace if capacity below 50% |
| Laptop won’t hold charge | Failed battery circuit | Test with power adapter removed | Immediate replacement needed |
| Battery swelling | Internal damage | Visual inspection | Replace immediately for safety |
| Overheating during use | Inefficient cells | Monitor temperature | Replace if consistently over 45°C |
How to check compatibility
Verify your laptop model matches our compatibility list above. Check your current battery’s part number (usually found on the battery label) or look up your laptop’s model number in system information.
When to replace
Replace your battery when it no longer holds sufficient charge for your needs, shows physical damage, or reaches 2-3 years of regular use. Most batteries maintain optimal performance for 300-500 charge cycles.
Installation guide (overview)
Power off your laptop and disconnect the charger. Remove the back panel, disconnect the old battery connector, and carefully remove any securing screws. Install the new battery, reconnect the connector, and replace the panel. Allow the new battery to charge fully before first use.
Usage & care tips
Avoid extreme temperatures (ideal range 15-25°C). Don’t leave your laptop plugged in constantly – occasional discharge cycles help maintain battery health. Store in a cool, dry place when not in use for extended periods.
Safety & recycling in AU/NZ
Never attempt to open or modify the battery. Damaged batteries should be taken to authorised recycling centres. In Australia, check with your local council for battery recycling options. In New Zealand, use designated battery recycling facilities.
FAQ
How long does shipping take to Australia/New Zealand?
Most orders arrive within 7-10 business days to major cities in Australia and New Zealand.
Is this battery genuine Lenovo?
This is a high-quality compatible battery that meets or exceeds original specifications.
What warranty is provided?
This battery comes with a 12-month warranty covering manufacturing defects.
Can I use this battery with newer Helix models?
Only use with compatible models listed above. Check your specific model number before purchasing.
How do I maximise battery life?
Avoid complete discharges, keep between 20-80% charge when possible, and store at room temperature.
Is installation difficult?
Most users can install it following our guide. If unsure, seek professional assistance.