The Meshtastic users currently struggle to find a good setup for providing several months(ideally even year-) long solar and battery powerd power supply for Meshtastic Routers. The limited charge rate of 19007’s on-board charger for Li-Ion batteries typically does not allow for full charging of several (for example 6) 18650 Li-Ion-type batteries in parallel.
May I suggest that RAK develops one or several solar charge controllers that fits the RAK Wisblock 19007 and allows for at least 3 amp charge rate? If such would be available larger solar panels and several parallel aligned batteries could be used for storing more power. This is highly important in areas where there are longer periods of bad weather for example during winter time.
Such a controller should also support the charging of batteries that can be charged below 0° C like sodium batteries (Na+ → -10°C) and LTO-Batteries.
The availability of such an officially supported solar charger would highly increase the acceptance of RAK Meshtastic starter kit.
Are there any plans to come up with such a solution? Thanks.