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Model: Milwaukee 48-59-1802 M18 Dual Bay Simultaneous Rapid Lithium-Ion Battery Charger - Red
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Take home message:
Default M18 charger provides 54W output
RAPID M18 charger provides double output (108W)
If we were to use the M18 12A battery as an example,
Default M18 charger takes 4 hours to charge to 100% if totally drained
RAPID M18 charger takes 2 hours to charge to 100% if totally drained
The other benefit of this charger is that you can charge two M18 batteries at the same time and they will charge simultaneously (vs. the default M18/M12 dual charger which will only charge one battery at a time).
There is also a MW SUPER charger that provies 248W output which is insane. It pulls 13.5A from your plug so you need to be sure you don't run too many things off the circuit providing power to the SUPER charger since it pulls so much amperage.
Personally I wish these chargers had a "Storage" setting built-in in that they'd charge your batteries to 40 - 60% for long term storage. Then when you really needed them you could pop them onto a RAPID/SUPER charger to quickly charge and use. I've got a lot of MW batteries (both M12 and M18 versions) and generally store them after recharging them which is bad for these batteries over the long term.
I got one of these on a different deal, I was trying to get the batteries and this was part of the deal (the free item). I didn't think I would use it because I have batteries and I have two chargers already.
I routinely use this and it is much faster than the ones you get with an M18 tool and much faster than I expected it to be.
I really appreciate it when I have to use my shop vac or leaf blower, the two things that eat up my batteries.
I got one of these on a different deal, I was trying to get the batteries and this was part of the deal (the free item). I didn't think I would use it because I have batteries and I have two chargers already.
I routinely use this and it is much faster than the ones you get with an M18 tool and much faster than I expected it to be.
I really appreciate it when I have to use my shop vac or leaf blower, the two things that eat up my batteries.
How much faster? Say for a 12ah forge battery on this charger vs a regular charger.
How much faster? Say for a 12ah forge battery on this charger vs a regular charger.
Milwaukee states 3x faster. I don't have Forge batteries but 5.0 XC and 6.0 XC and what would take about an hour or hours seems like it's done in about 30 minutes.
I would plug my old ones in and walk away and come back the next day or later in the day.
With this rapid charger I will come back what seems to be minutes and it's green and ready to go.
Milwaukee states 3x faster. I don't have Forge batteries but 5.0 XC and 6.0 XC and what would take about an hour or hours seems like it's done in about 30 minutes.
I would plug my old ones in and walk away and come back the next day or later in the day.
With this rapid charger I will come back what seems to be minutes and it's green and ready to go.
Take home message:
Default M18 charger provides 54W output
RAPID M18 charger provides double output (108W)
If we were to use the M18 12A battery as an example,
Default M18 charger takes 4 hours to charge to 100% if totally drained
RAPID M18 charger takes 2 hours to charge to 100% if totally drained
The other benefit of this charger is that you can charge two M18 batteries at the same time and they will charge simultaneously (vs. the default M18/M12 dual charger which will only charge one battery at a time).
There is also a MW SUPER charger that provies 248W output which is insane. It pulls 13.5A from your plug so you need to be sure you don't run too many things off the circuit providing power to the SUPER charger since it pulls so much amperage.
Personally I wish these chargers had a "Storage" setting built-in in that they'd charge your batteries to 40 - 60% for long term storage. Then when you really needed them you could pop them onto a RAPID/SUPER charger to quickly charge and use. I've got a lot of MW batteries (both M12 and M18 versions) and generally store them after recharging them which is bad for these batteries over the long term.
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Take home message:
Default M18 charger provides 54W output
RAPID M18 charger provides double output (108W)
If we were to use the M18 12A battery as an example,
Default M18 charger takes 4 hours to charge to 100% if totally drained
RAPID M18 charger takes 2 hours to charge to 100% if totally drained
The other benefit of this charger is that you can charge two M18 batteries at the same time and they will charge simultaneously (vs. the default M18/M12 dual charger which will only charge one battery at a time).
There is also a MW SUPER charger that provies 248W output which is insane. It pulls 13.5A from your plug so you need to be sure you don't run too many things off the circuit providing power to the SUPER charger since it pulls so much amperage.
Personally I wish these chargers had a "Storage" setting built-in in that they'd charge your batteries to 40 - 60% for long term storage. Then when you really needed them you could pop them onto a RAPID/SUPER charger to quickly charge and use. I've got a lot of MW batteries (both M12 and M18 versions) and generally store them after recharging them which is bad for these batteries over the long term.
Take home message:
Default M18 charger provides 54W output
RAPID M18 charger provides double output (108W)
If we were to use the M18 12A battery as an example,
Default M18 charger takes 4 hours to charge to 100% if totally drained
RAPID M18 charger takes 2 hours to charge to 100% if totally drained
The other benefit of this charger is that you can charge two M18 batteries at the same time and they will charge simultaneously (vs. the default M18/M12 dual charger which will only charge one battery at a time).
There is also a MW SUPER charger that provies 248W output which is insane. It pulls 13.5A from your plug so you need to be sure you don't run too many things off the circuit providing power to the SUPER charger since it pulls so much amperage.
Personally I wish these chargers had a "Storage" setting built-in in that they'd charge your batteries to 40 - 60% for long term storage. Then when you really needed them you could pop them onto a RAPID/SUPER charger to quickly charge and use. I've got a lot of MW batteries (both M12 and M18 versions) and generally store them after recharging them which is bad for these batteries over the long term.
Why is storing them after recharging bad over the long term? Should you leave them on the charger?
Yes, it can be. Not sure why you got down voted. The battery life can be affected since fast charging wears down the elements faster if it's not managed properly. The device needs to have a temp sensor and other logic to ensure it's not pushing the battery too hard. So basically we have to assume the manufacturer is doing it the best way possible.
Yes it is. But it come down to time vs money. Do you want to wait for battery to finish charging to continue your work or you want to complete it faster at a cost of replacement battery in 5 years? Also buying more battery up front and use slow charger or having few with fast charger.
I would take the fast route since working on a job earn much more money to replace those batteries down the line.
Top Comments
Take home message:
Default M18 charger provides 54W output
RAPID M18 charger provides double output (108W)
If we were to use the M18 12A battery as an example,
Default M18 charger takes 4 hours to charge to 100% if totally drained
RAPID M18 charger takes 2 hours to charge to 100% if totally drained
The other benefit of this charger is that you can charge two M18 batteries at the same time and they will charge simultaneously (vs. the default M18/M12 dual charger which will only charge one battery at a time).
There is also a MW SUPER charger that provies 248W output which is insane. It pulls 13.5A from your plug so you need to be sure you don't run too many things off the circuit providing power to the SUPER charger since it pulls so much amperage.
Here's a good review of MW chargers as well: https://toolguyd.com/do-fast-char...batterie
Personally I wish these chargers had a "Storage" setting built-in in that they'd charge your batteries to 40 - 60% for long term storage. Then when you really needed them you could pop them onto a RAPID/SUPER charger to quickly charge and use. I've got a lot of MW batteries (both M12 and M18 versions) and generally store them after recharging them which is bad for these batteries over the long term.
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22 Comments
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I routinely use this and it is much faster than the ones you get with an M18 tool and much faster than I expected it to be.
I really appreciate it when I have to use my shop vac or leaf blower, the two things that eat up my batteries.
I routinely use this and it is much faster than the ones you get with an M18 tool and much faster than I expected it to be.
I really appreciate it when I have to use my shop vac or leaf blower, the two things that eat up my batteries.
I would plug my old ones in and walk away and come back the next day or later in the day.
With this rapid charger I will come back what seems to be minutes and it's green and ready to go.
I would plug my old ones in and walk away and come back the next day or later in the day.
With this rapid charger I will come back what seems to be minutes and it's green and ready to go.
Our community has rated this post as helpful. If you agree, why not thank Rh1no
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Take home message:
Default M18 charger provides 54W output
RAPID M18 charger provides double output (108W)
If we were to use the M18 12A battery as an example,
Default M18 charger takes 4 hours to charge to 100% if totally drained
RAPID M18 charger takes 2 hours to charge to 100% if totally drained
The other benefit of this charger is that you can charge two M18 batteries at the same time and they will charge simultaneously (vs. the default M18/M12 dual charger which will only charge one battery at a time).
There is also a MW SUPER charger that provies 248W output which is insane. It pulls 13.5A from your plug so you need to be sure you don't run too many things off the circuit providing power to the SUPER charger since it pulls so much amperage.
Here's a good review of MW chargers as well: https://toolguyd.com/do-fast-char...batterie
Personally I wish these chargers had a "Storage" setting built-in in that they'd charge your batteries to 40 - 60% for long term storage. Then when you really needed them you could pop them onto a RAPID/SUPER charger to quickly charge and use. I've got a lot of MW batteries (both M12 and M18 versions) and generally store them after recharging them which is bad for these batteries over the long term.
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Take home message:
Default M18 charger provides 54W output
RAPID M18 charger provides double output (108W)
If we were to use the M18 12A battery as an example,
Default M18 charger takes 4 hours to charge to 100% if totally drained
RAPID M18 charger takes 2 hours to charge to 100% if totally drained
The other benefit of this charger is that you can charge two M18 batteries at the same time and they will charge simultaneously (vs. the default M18/M12 dual charger which will only charge one battery at a time).
There is also a MW SUPER charger that provies 248W output which is insane. It pulls 13.5A from your plug so you need to be sure you don't run too many things off the circuit providing power to the SUPER charger since it pulls so much amperage.
Here's a good review of MW chargers as well: https://toolguyd.com/do-fast-char...batterie
Personally I wish these chargers had a "Storage" setting built-in in that they'd charge your batteries to 40 - 60% for long term storage. Then when you really needed them you could pop them onto a RAPID/SUPER charger to quickly charge and use. I've got a lot of MW batteries (both M12 and M18 versions) and generally store them after recharging them which is bad for these batteries over the long term.
Take home message:
Default M18 charger provides 54W output
RAPID M18 charger provides double output (108W)
If we were to use the M18 12A battery as an example,
Default M18 charger takes 4 hours to charge to 100% if totally drained
RAPID M18 charger takes 2 hours to charge to 100% if totally drained
The other benefit of this charger is that you can charge two M18 batteries at the same time and they will charge simultaneously (vs. the default M18/M12 dual charger which will only charge one battery at a time).
There is also a MW SUPER charger that provies 248W output which is insane. It pulls 13.5A from your plug so you need to be sure you don't run too many things off the circuit providing power to the SUPER charger since it pulls so much amperage.
Here's a good review of MW chargers as well: https://toolguyd.com/do-fast-char...batterie
Personally I wish these chargers had a "Storage" setting built-in in that they'd charge your batteries to 40 - 60% for long term storage. Then when you really needed them you could pop them onto a RAPID/SUPER charger to quickly charge and use. I've got a lot of MW batteries (both M12 and M18 versions) and generally store them after recharging them which is bad for these batteries over the long term.
According to this: A rapid charger will charge the 12 ah battery in 130 minutes vs 241 minutes on a regular.
'faster' charging maycreate excessive heat, it's a little complicated and case-by-case
I would take the fast route since working on a job earn much more money to replace those batteries down the line.
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Join The Conversation
Share information with the community. Please follow our Community Guidelines and be kind!