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Garmin StreetPilot C330 from 2007. Revived it's proprietary 18650 battery using an OPUS BT-C3400, and a bit of jerry-rigging. : r/techsupportmacgyver
![How to update a 15 Year old Garmin StreetPilot C320 C330 C340 Nuvi 350 GPS to the Newest 2020 Maps. - YouTube How to update a 15 Year old Garmin StreetPilot C320 C330 C340 Nuvi 350 GPS to the Newest 2020 Maps. - YouTube](https://i.ytimg.com/vi/IhRg7KjoQrQ/maxresdefault.jpg)
How to update a 15 Year old Garmin StreetPilot C320 C330 C340 Nuvi 350 GPS to the Newest 2020 Maps. - YouTube
![How to update a 15 Year old Garmin StreetPilot C320 C330 C340 Nuvi 350 GPS to the Newest 2020 Maps. - YouTube How to update a 15 Year old Garmin StreetPilot C320 C330 C340 Nuvi 350 GPS to the Newest 2020 Maps. - YouTube](https://i.ytimg.com/vi/d82J-5yAuDg/sddefault.jpg)
How to update a 15 Year old Garmin StreetPilot C320 C330 C340 Nuvi 350 GPS to the Newest 2020 Maps. - YouTube
![How to update a 15 Year old Garmin StreetPilot C320 C330 C340 Nuvi 350 GPS to the Newest 2020 Maps. - YouTube How to update a 15 Year old Garmin StreetPilot C320 C330 C340 Nuvi 350 GPS to the Newest 2020 Maps. - YouTube](https://i.ytimg.com/vi/5MBiB7Kiux0/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLAx59iSOdmuN_Z9bcZw5WzKsKEubg)