How to replace the battery in your Ergorapido?
In general you do not replace the battery – even if you really want to due to the batteries epedemic failures. The batterypack is integrated into the hand unit of the 2-1 battery vac, and it usually simpler to replace the entire hand unit.
This seems like a rather bad solution, especially since there seems to be almost an epedmic issue with bad batteries and low run time on Ergorapido. There are many comments and many issues reported on failing batteries, and the vacuum losing power after very short usage.
This should of course not be accepted – and best is to go back to the retailer or directly to Electrolux and demand your money back – or a new vacuum. It seems as Electrolux is aware of the issue, and quickly will give you a replacement (but why haven’t they fixed the problem?) [Australia call +61 1 300 363 640, UK +44 (0) 3445 610 643, andmany more of course]
Most battery deterioration would be on one of the older models with NiMH-batteries, which gets decreasing performance over extended use. That is unfortunately a feature of this battery type.
Newer models use Lithium batteries (18V), and they shouldstay powerful for longer, and you would hopefully not need to look at replacing those batteries, unless you are a heavy user. That is the same battery technology used in power tools etc, and in Tesla’s Powerwall. For example, the latest versions are only availale with Lithium batteries. They also have better performance, and some other improvements over previous models. See here, e.g.. However, there are also still a lot of problems reported on the Li-batteries.
[Note, the all batteries could also wear out quicker if you expose them to extensive heat or sunlight, see table 3 here]
Secondly, the cost for replacing the hand unit is not a huge saving vs. getting a brand new Ergorapido. (Bad engineering solution…)
See here for a historical overview of the models.
But it is still possible to replace the batteries in your Ergorapido if you want to. It is not something I would try myself, but you can see how it is done in the below video, if you want to give it a try. Or you can buy a new handunit only.