G-836 and G-846 Magnetometers FAQ
Where can I get replacement batteries or charger for my G-836 Unimag or G-846 Unimag II?
Geometrics does not sell these batteries and chargers anymore. However, replacements may be available from most battery manufacturers. Give the dimensions, voltage, and current rating to your local battery supplier and ask for a current equivalent replacement.
If the battery size or terminal placement have changed, make sure any exposed battery terminals are insulated before it is inserted into the metal case. Reuse the connectors and wires for batteries and chargers if possible.