How long do you recharge a Fire Storm 18v battery?

Contact Master Craft or its distributor to inquire. Alternatively, cross-reference an equivalent.

If the battery will take apart the remove the screws and split the casing. Leave it somewhere warm and dry for several days...

Make sure the charger operates first. If it does, try this. It worked for me. Put the battery in the freezer over night. In the morning put it in the sun for several hours. You must be sure the internal batteries are fully thawed. Then recharge normally. You'll get up to 75% capacity back. If this trick doesn't work, then the battery is not repairable.

A fully working 18v Dewalt Battery will only take 90 minutes to just over an hour to fully charge from going flat. This fully charged battery should last about 4 hours of use (depending on the load). So the answer is 1 hour.

It's a simple enough setup, with a battery(18v), a globe(18v), a switch, and for some reason a circuit board with do-hickeys on it. I bypassed the circuit board and it then worked fine, but you may want to trouble shoot a bit.

-check for voltage in the globe holder

take it apart. use a multimeter on its beep setting.
-connect to either side of the switch and see if it works
-connect the battery and see if you get voltage across the pivot contacts.

see my solution here for how to dissemble, and how to bypass the circuit board
http://www.fixya.com/support/t15194423-remove_case_head_from_makita_bml185w

I know this is an older question but I would not recommend using these batteries for your inverter. While they are powerful for their size, LiOn batteries require careful metering and control of both charging and discharge cycles and do not last long if fully discharged (IE: running an inverter until they are dead). You would get much better performance from a deep cycle lead acid battery, which is designed to be discharged fully.

If you were to use the drill batteries for your project, you'd want to get someone with electronics experience to wire a connection to the Ryobi charger to accept the lower voltage input from the solar PV (instead of 120V) so the charger can regulate the charge rate. You'd need to make sure the solar panel voltage is within the same range as the charger's low voltage side (never tested, but guess around 20-24VDC). In addition, you'd need to make sure the inverter is monitored and turned off before the batteries shut down (their internal circuit protection shuts them down around 10% IIRC). Don't rely on the battery to protect itself, that is a sure fire way to ruin your batteries (no pun:-).

Hope this helps.

I do not recommend connecting anything but the factor charger to the battery. No 12v will not not charge an 18v battery.
They can BLOW UP if you apply too much current.
The correct charger can be found cheap. Look on craigs list under tools.
Good Luck

u can call black&decker and get one that way or go to your local hardware store or the place you bought it from and you should be able to get another one.

I called a B & D service center.


mjs