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9V Li-Ion Battery Charger

Replacement: None. We are no longer carrying this charger. This page is for reference only.

Rechargeable 9V batteries are cool, but chargers for them are not very common. This charger can charge 2 9V Li-Ion batteries at once. Use it with our rechargeable 9V listed below, or your own. This charger is intended for lithium ion batteries only.

  • 110-250VAC input
  • 150mA (each) output


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • The datasheet lists "The charger is intended for use with Ni-MH/NiCd batteries only. Charging other battery types may cause explosions, breakage, personal injury or property damage." under #6 Cautions.
    So is it truly a Li-ion battery charger?

    • Looks like somebody didn't scan through a pre-existing document well enough and missed that one reference. Every other reference, and a photo inside the document, refers to Li-Ion. Well, "Li-on", technically ;)

    • I too am confused by this charger. It says on the back (see pic) that it outputs 8.4v whereas this is a 9v battery charger. From what I know, it takes a voltage higher than 9v to charge a 9v battery. Does this charger really work?

      • Li-Ion tech has a nominal voltage of 3.6-3.7V per cell. There's probably two cells in such a '9V brick' (referring to the form-factor more than actual voltage), so 7.2V-7.4V. 8.4V should charge that nicely.

  • I remember when I was building robots in high school, and I mentioned that my little walker used up batteries quickly. He had six AA rechargables - 2100maH or so - but he ate them up. It was really funny how often people would say "Just use 9v batteries, they have way more power." Apparently regular people equate voltage to power. Funny people. I did have a 9v for the electronics (the other batteries only powered the servos) and it was only 150mAh. Your lithiums look much nicer!
    But now that you have a charger for them, things look a little better!

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