Any NiMH battery can be charged

Discussion related to the Garmin GPSMAP 66 series GPSr
asprin624
Posts: 34
Joined: Sun Dec 29, 2019 11:34 am

Any NiMH battery can be charged

Post by asprin624 »

If you remove the Garmin Batteries you will see it has 2 plastic holders between the 2 batteries.

Now if you look into the battery area of the GPSMAP 66S you will see a trip switch at the bottom.

If you put a plastic block between any 2 NiMH batteries it will press down on the switch and you then can recharge them the same way as the Garmin NiMH batteries.

You will have to make the correct size plastic block for it to work.

gpsrchive
Site Admin
Posts: 1026
Joined: Fri Jan 20, 2017 11:29 pm

Re: Any NiMH battery can be charged

Post by gpsrchive »

The blister-pack material most microSD cards are shipped/sold in seems to work well for this application.

bonstetten
Posts: 49
Joined: Sun Oct 28, 2018 12:57 pm

Re: Any NiMH battery can be charged

Post by bonstetten »

If you have access to a 3D-Printer you also can print a nice part for this purpose.

See here (german only, but photo explain all you need)

g66
Posts: 100
Joined: Wed Jul 03, 2019 1:48 pm

Re: Any NiMH battery can be charged

Post by g66 »

Works great since months
Just waiting for a new firmware, to get the softwarebugs resolved

Hardware is fine

steerage250
Posts: 68
Joined: Fri Jan 04, 2019 2:48 am

Re: Any NiMH battery can be charged

Post by steerage250 »

I'm normally fairly observant about these things, but I never noticed that switch!

Does a Garmin battery pack charge whenever USB power is applied ?

gpsrchive
Site Admin
Posts: 1026
Joined: Fri Jan 20, 2017 11:29 pm

Re: Any NiMH battery can be charged

Post by gpsrchive »

Yes, if the charging controller deems it necessary.

steerage250
Posts: 68
Joined: Fri Jan 04, 2019 2:48 am

Re: Any NiMH battery can be charged

Post by steerage250 »

bonstetten wrote:
Sat Jan 04, 2020 8:36 pm
If you have access to a 3D-Printer you also can print a nice part for this purpose.

See here (german only, but photo explain all you need)
I have two mates with 3D printers - I'll set them on the task!

thanks

tomocernec
Posts: 15
Joined: Tue Feb 19, 2019 7:26 pm
Location: SLOVENIA

Re: Any NiMH battery can be charged

Post by tomocernec »

bonstetten wrote:
Sat Jan 04, 2020 8:36 pm
If you have access to a 3D-Printer you also can print a nice part for this purpose.

See here (german only, but photo explain all you need)
Thanks for the FILE-s :D :D :D

steerage250
Posts: 68
Joined: Fri Jan 04, 2019 2:48 am

Re: Any NiMH battery can be charged

Post by steerage250 »

- and the mate came through with the part, and now I see the animated battery charging icon for the very first time :D

thanks for the link
Attachments
battery charging adapter.JPG
battery charging adapter in place.JPG

robert
Posts: 94
Joined: Tue Oct 01, 2019 1:19 pm
Location: United Kingdom

Re: Any NiMH battery can be charged

Post by robert »

For those without the luxury of a 3D printer I found that old credit cards are ideal. Cut a piece 9mm x 25mm and sellotape this in place in the middle of the battery box, over the button. Don't worry if the sellotape does not hold the button down without the battery. Once they are fitted they push the card down. Just ensure you don't make it too wide as there is not enough room for the batteries to sit directly on top of the card and this may damage the housing or allow water ingress.
GPSMAP66 with NiMH hack.jpg

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