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DE9180 Batterie 18V DeWalt
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Description du produit
Ces batteries sont extrêmement légères = 0.68 kg. Transformez votre machine nicd/nimh DEWALT en machine lithium !!! Les batteries li-ion technologie nano sont compatibles avec les outils DEWALT de même tension. AVANTAGES : Les batteries DEWALT exclusives en Technologie Nano Li-Ion offrent une excellente durée de vie et durabilité, jusqu'à 2000 cycles de charge ! Leurs poids en 18V est équivalent au poids d'une batterie 12V en technologie NiCd ou encore NiMH Pas d'effet mémoire et aucune perte de charge pour un maximum de productivité et aucune perte de temps Ces batteries sont compatibles avec tous les outils DEWALT 18V Batterie haute capacité - 20% d'autonomie en plus qu'une batterie 2Ah NiCd Caractéristiques électriques excellentes Longue durée de vie de la batterie Extrêmement efficace et robuste dans les applications les plus dures capacitée = 2 Ah
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Commentaires client les plus utiles sur Amazon.com
I like that these packs last a long time, don't seem to lose much charge if you go a month or two without using the drill, and they don't suffer any of the horrible memory effects associated with NiCad chemistry. They're also lighter and more powerful than if they featured NiMH chemistry in the same size.
I'll probably be adding more DeWalt 18V XRP tools to my collection in the future (along with another battery or two), so that I won't have to have a bunch of different chargers and batteries for each cordless tool. Very happy with the DeWalt quality and durability.
Important things to know:
ONLY the li-ion charger can charge the li-ion pack (most new tools ship with this charger which will do all forms of packs so if you've bought a complete tool/battery/charger even if it was a XRP nicad battery check your charger and see if it is lithium ready)
The li-ion pack is *generally* interchangable with the regular XRP pack, the one exception I have found is the portable flourescent worklight which can be modified to accept the li-ion pack by cutting notches inside the battery channel. Other than that, the two packs have the same power density 18VDC and 2.4 AH for a nominal 40-43 watt hours per pack regardless of cell chemistry.
I've noted that really high current tools like the 1/2" hammer drill cutting a circular hole for a lock prefer the older XRP nicad cells for high power use - lithium ion cells have current limiters to prevent the infamous lithium fire that affected laptops and cellphones where a cell would short out the pack and quickly catch fire. The current limiters prevent the fire but also limit the tool's current to a tad over 2 amps - the pack however parallels cells so it's current limit is higher - thats the individual cell protection. Generally if your tool gets hot doing whatever you are using it for, it seems to prefer the nicad packs. Few tools get that hot on battery power, so lithium is a viable option.
I really like the light weight of the pack on my smaller tools like my 3/8 impact driver - it's well matched to that tool and I appreciate the light weight when driving bolts and lag screws with it. The lithium pack is smaller in the overall length so the whole tool is more flexible with it on the bottom to get in to tight spots. There is a 1/2 capacity lithium pack dewalt makes but I opted to keep them all the same for runtime reasons.
As for charge storage, I keep 2 XRP Nicad packs in my dual charger which maintains the nicads with a trickle charge so they go through a rapid charge then a trickle charge until you use them - I rotate my packs and do not have problems with a pack loosing charge in storage since it is stored in a charger or connected to a tool. When I go to a job, I pull the two freshly charged packs, and I have a charger in the truck on an inverter so I'm never caught without a charged pack handy.
I bought the XRP Lithium on sale, and it was still 2x the price of the nicad pack. I have only one of these guys and use it with lightweight tools. I also like the fact that I can store the pack out of the charger without loosing alot of charge - it does not need to be part of my rotation schedule and can sit in my toolbag as a spare in case I run out of fully charged nicad packs. Tools like the shopvac that draw alot of power and have short runtimes are not well suited to the lithium pack.
In summary I am very impressed at how well dewalt made the change to lithium and only left out one tool (which can be fixed with a sawzall blade to accept it). The pack runs almost everything I own well and weighs less. At twice the price, I'm giving up one extra XRP battery to get the lightweight feature, but not having to worry about compatibility makes it worth it, along with long term storage in my toolbag. It's a tradeoff, and a matter of personal preference and intended usage - if I were a locksmith boring 3" holes in doors all day I'd stay with nicad, but if I carried my tool on my belt all day loosing the weight of nicad would be a pleasant change. Since electrically they are almost identical, it's your choice as to what works best for your tools.
BUUUUUUT: as of Oct 2015 Dewalt finally came up with a way to mate 20v batteries to 18v tools, after years and 12-15 different 18v tools I still use, of saying they could not . . . 20v 4 and 5 amp houtrs, here I come . . . better late than never!!!!!!!!!!