BMW i3 Replacement Battery: What Your Options Are
If your BMW i3 battery has lost capacity, you have three realistic choices: a dealer replacement, a used pack from a salvage yard, or a new pack from a specialist. This guide explains how each one works, so you can decide what fits your car and budget.
Why BMW i3 batteries lose capacity
The high-voltage battery in the BMW i3 is built from many cells. Over years and many charge cycles, the capacity of those cells falls. Heat, fast charging and age all speed this up. Most owners notice shorter driving range first.
Your three options
1. Dealer replacement. This is the most expensive route, but the warranty is clear and the work is done by BMW-trained staff.
2. Used or salvage pack. This is the cheapest route, but you rarely know the pack's real condition. A pack with unknown capacity can fail soon after installation.
3. New pack from a specialist. This is the middle route. You get a new battery from the manufacturer, with the manufacturer's warranty, and your own mechanic can fit it.
What to check before you buy any replacement pack
- New or used. A new pack should come from the manufacturer with their warranty. For a used pack, ask for the capacity test result in writing.
- Matching connectors and fitment. Confirm the pack is for your model year and has the right connectors.
- A written warranty. Know how long it lasts and what it covers.
- Shipping and handling. Lithium-ion packs must be shipped under hazardous-goods rules.
Our BMW i3 SE09 120Ah replacement packs
We supply new BMW i3 SE09 120Ah packs from the manufacturer. Packs ship in 3 to 6 weeks.
Manufacturer warranty
- Capacity warranty: up to 15 years when the pack is cycled once a day, or up to 8 years when it is cycled twice a day.
- Functional warranty: 12 months from the delivery date.
- If a valid claim is made: the manufacturer and customer agree whether the pack is repaired or replaced.
How replacement works
Your mechanic orders the battery from us, and our team supports them through the replacement.
Not sure which pack fits your car? Send us your VIN and we will confirm before you order.