Monthly Archives: June 2025

We were pleased to be asked to carry out a complete lithium upgrade and charger/inverter installation on board a sailing yacht, Wild Angel at Port Solent. The owner had conducted some research beforehand and had decided on Fogstar Lithium batteries, which we were happy to supply as one of our preferred lithium brands.

Keen to have as much capacity on tap as possible, we replaced the existing 580Ah AGM bank with 1200Ah of Fogstar lithium batteries. Note that AGMs shouldn't be discharged below 50%, so 580Ah of AGM/lead acid only really gives you 290Ah of usable capacity. However, lithium allows you to utilise all of its capacity, effectively quadrupling the amount of power available on board this sailing yacht.

There were a few practical challenges to overcome with the installation. Wild Angel is a Jeanneau Sun Odyssey 50DS, fully kitted out with a generator, air conditioning, water maker, bow and stern thrusters. Whilst the accommodation is palatial as you would expect from a 50ft