Tutorial video on replacing old energy storage batteries with power supplies

There is even a battery option for these electrical storage systems (ESS) with an unusual twist: the use of “retired” battery packs (that's a euphemism for “used”), which are generally (but not exclusively) taken from cars and trucks of various types.

One person has done just that, with a remarkable home charging system created by repurposing over a thousand used laptop batteries. This remarkable feat has been running successfully for an astonishing eight years without a single battery replacement, as detailed by the creator, Glubux, on the online forum Second Life Storage.

One of the facts of life is that batteries fail. Some take years, but eventually they will all bite the dust. However, there are so many factors in electrical systems that can go wrong, that often times the battery takes the blame for other component's problems. The easiest and fastest thing to check for problems is the battery.

This remarkable feat has been running successfully for an astonishing eight years without a single battery replacement, as detailed by the creator, Glubux, on the online forum Second Life Storage. The setup is housed in a somewhat unassuming shed 50 meters (164 feet) away from the individual's residence, but its purpose is anything but ordinary.

The widely used standard is to declare the battery “done” for its initial applications when its capacity drops to 80% of the original value. (Personal note: I generally ignore projections that look more than a few years out, or I give them at least a ±30% error band despite any stated precision.

A second issue is the additional useful life of these batteries, which are already 20% degraded when they are installed. The cited article says that second–life batteries are deemed to be useful until they drop to 60% of their initial capacity, which is typically after 10 to 15 years of ESS use.