There has been many Maples with Privy marks, which are small marks or indentations (originally used in coins to determine Mint but these days more for marketing to coin collectors). Some Privy marks were only available outside Canada, such as those made for the Royal Dutch Mint in Holland.
What is the down side of a lithium drill? The first thing that always comes to mind is cost. The good news is as more and more lithium drills hit the market, the cost is dropping. One other thing inherent to lithium drills is problems that can occur in cold weather. lithium mines ontario don't like a large demand (load) in very cold weather. If you live a colder climate, you will need to warm up the batteries. It may be as simple as putting the battery in your pocket or just slowly running the drill with no load until the "juice" gets flowing. Knowing this going in will save you a lot of frustration with your new lithium drill.
Keep it cool: The life of the battery depends on the temperature and the state of charge. High temperatures and high cobalt mining canada charge levels will lead to a short life. At 25C, you have 96% capacity at 40% charge, and 80% at 100% charge. The warmer it gets, and the higher the user charge level, the quicker it will die. Try to keep the temperature down and the ideal storage place is inside the refrigerator at 40% capacity.
3) Battery life: a combination of a battery's drainage and capacity and is normally seen quoted for standby and/or talk time. Usually quoted for ideal conditions. But, remember, that most of us will rarely use a battery full under ideal conditions all of the time. And analog mode will drain a battery very quickly. And be careful when in areas that are difficult to get coverage such as buildings or tunnels since your phone battery will drain because your phone will continually be trying to make a connection.
A lithium drill is much lighter than a comparable drill of the same voltage. This allows you to use higher voltage tools with lighter weight. Remember, voltage equals power, mah equals the gas tank of the battery. So, if you are using a 12 volt now, a 18 volt or even a 36 volt lithium mines ontario drill will offer you much more power and still have the same run time of you 12 volt with close to the same weight.
Customers frequently ask me how long to charge the battery until full and then how long until a re-charge. I urge customers to read the insert that came with the unit. Charging times vary by model type. After the initial charge, unplug the unit. Most are not meant for a trickle charge and over-charging could damage the device.
The Makita BHP451 has an exceptional amount of power, is lightweight and comfortable to hold, has a really great battery system, and tons of other cool features. All around, I think this is an awesome hammer drill/driver and it's worth checking out for yourself.