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Post by keylow on Nov 5, 2019 10:08:00 GMT -5
Did I receive some mislabeled batteries or are the 5.5ah and 8.0ah batteries really exactly the same size and weight?
I’ve been in the FOG since the beginning but long interested in Mafell. Took advantage of Timberwolf’s promotion and bought the KSS40 full kit and MT55 bare. The KSS40 included a pair of 5.5 batts. Also recently bought a Metabo 150 grinder kit that included a pair of 8ah batteries and also a BS 18 LTX-3 Quick.
I was very interested in the high speed drill but the only batteries I have are so heavy. The way batteries are marketed (compared to full kit prices) is a real mental hurdle for me. What batteries do you guys recommend for the 3 speed drill?
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Post by aas on Nov 5, 2019 14:38:08 GMT -5
Get some of the 4ah Li-Hd batts, much lighter, I use on my Mafell drill, plus the Metabo equivalent and impact.
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Post by keylow on Jan 13, 2020 17:04:53 GMT -5
Gathered up a bunch of batteries and weighed them.
Metabo 18v
2 amp/36wh = 396 g 4 amp/72wh = 587g 5.5 amp/99wj = 993g 8 amp/144wh = 989g
What? The 8 amp battery pack actually weighs less than the 5.5? Sure is a big incentive to skip the 5.5 amp if the 8 can be had at a good price.
Milwaukee M18
2 amp/36wh = 427g 5 amp/90wh = 741g 9 amp/162wh = 1087g
Makita 18v
2 amp/36wh = 381g 5 amp/90wh = 637g
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Post by aas on Jan 13, 2020 21:33:40 GMT -5
1kg for a battery is a lot - I only use the 8's on my Mafell saws. Anything else and I use a 4Ah. Also worth checking out the 3,1 and 3,5 Ah LiHDs, as they are discontinued, you may be able to pick some up cheap - certainly a lot cheaper here in Europe than the newer style, but still great batteries.
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Post by huntsgemein on Jan 14, 2020 18:23:18 GMT -5
I find the big batteries are most useful on high current drain appliances & applications. Grinders in particular (I have both 5" & 9" Metabo cordless), the little SCMS, Mafell saws (KSS & MT55) & on occasion the drills (3-speed BS 18 & GB 18 tapping drill) when I use them close to max capacity (7" earth auger, 1/2" drills & taps in steel etc.), the Portaflood etc.
Nevertheless, most hand-held tasks are better performed with smaller batteries. Big batteries on smaller hand tools seriously affects handling & ergonomics. I generally prefer the smaller 3.5 & 4.0 AH Li-HDs for use with the rattler, drills & Rothenberger TT pipe press. They're so much more easily handled, especially @ arms-length, overhead etc. The difference is really cheese & chalk.
When you think about it, it just makes sense. Modern, technically sophisticated EC cordless tools are much more compact physically, shorter in the drive shaft, lighter yet more powerful than earlier brushed iterations. Why would you compromise these compact, lightweight, easily handled dimensions & ergonomics by attaching such a big, heavy & unwieldy power source?
Sure, the smaller, lighter 12v class of tools (actually only a "mere" 10.8v) will perform adequately for many tasks. Metabo's latest "12v" brushless range are measureably better in this regard than the older brushed 10.8v Powermaxx Metabo/Mafell class, but they're still somewhat compromised as regards overall capacity, power & speed, etc. They certainly have a legitimate place in my toolkit, particularly as "house tools" for fitting and furniture construction.
The bigger EC/BL Mafell/Metabo & other Cordless Alliance tools are simply more powerful, capacious and versatile, with little "real-world" actual difference in percieved dimensions over their smaller "12v" brethren. The larger 7.0 & 8.0 AH Li-Hds maybe deliver a little more peak power for those big, power hungry tools & tasks, but for all the rest I'd invariably prefer to use the more compact & lightweight 5-cell batteries.
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Post by aas on Jan 14, 2020 18:59:52 GMT -5
Rothenberger TT pipe press. ...and I thought I was the only one here with one of those! :-)
As an asides, I've got some of the older 3,1 LiHDs which I use for 'dirty' work like the pipe press, 1/2" impact wrench, etc.
The hard plastic on the old batteries is easier to keep clean; the red rubber on the newer style batteries is already fading and going almost pink (despite being very well looked after)... a big fail for Metabo there!
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