original text here on the product page
As of today the battery for the Fairphone 2 is out of stock. As this will come as an unpleasant surprise to many, we want to answer some questions how this happened. This forum message is the first way of informing, the website of Fairphone will be updated soon.
When will batteries be for sale on the Fairphone website?
We expect to have more batteries in stock on our website by the end of April, and will do our best to resolve the situation and keep you informed.
What led up to this situation?
The sub-supplier who made the battery cell used in our original battery for the Fairphone 2 stopped producing it. Last July, we kicked off a project with a new manufacturer to produce a new battery to support the Fairphone 2 for a longer term. We placed a purchase order with this new manufacturer, and they committed to delivering in time to avoid any shortage. We also reserved several extra months worth of supply as a buffer.
On the 23rd of January, the manufacturer informed us they had made a mistake in scheduling that will delay the delivery of our order. We then made the decision to reserve remaining stock to meet existing commitments to reseller partners and for in-warranty repairs.
What are you doing to fix this situation?
We are in close contact with the manufacturer in order to meet (or even improve on) the new delivery date. They notified us of the delay which has caused this situation, and remain committed to delivering.
The development cycle for a new battery, with a new cell, can take many months. It includes significant testing, qualification and certification work. We planned enough time to cover for iterations and delays. For example, they produced multiple rounds of samples, which were evaluated by multiple parties to ensure the quality and safety of the final product.
Our plan is to continue working with them, but closely monitor the situation. We are confident that despite the delay they will deliver good batteries.