- Dewalt 20v battery run time mod#
- Dewalt 20v battery run time mods#
- Dewalt 20v battery run time series#
That gas tank is drained by a combination of voltage draw and amp-hour draw (current). The 9.0 amp hour FlexVolt will have 162 watt-hours when it’s released. In the case of DeWalt FlexVolt batteries, that’s 108 nominal watt-hours (nominal voltage times amp hours). It has a set capacity of potential energy available. You can think of a lithium-ion battery like a gas tank. Michael Springer running a 3/4″ board through the new DeWalt Cordless table saw and making use of the 60V FlexVolt 6.0 Ah battery When higher watts are required by larger brushless motors, you can put the battery into FlexVolt (60V Max) tools. With FlexVolt, tools that draw fewer watts for their smaller brushless motors use the 20V Max configuration. Each motor has an amperage rating, but the power consumption is actually measured in watts (your power bill always shows kilowatt-hours used). A drill may get all the torque it needs from a 6 amp motor while a miter saw requires a 15 amp motor to perform well. DeWalt FlexVolt – Why?Ĭorded tools draw different amounts of power. The DeWalt 15Ah FlexVolt battery uses even more cells-but the same principle. Electronic communication between the tool and the battery tells the cells which set of wiring to run on. If you look inside the DeWalt FlexVolt battery pack, you’ll find 15 lithium-ion cells along with wiring configurations for both 20V Max and 60V Max power supply.
Dewalt 20v battery run time series#
Another solution was to combine multiple batteries with a series connection between them to double the voltage. If you wanted a higher voltage battery, you had to move to a completely new platform incompatible with the lower voltage system. In series mode, DeWalt FlexVolt batteries connect all 15 cells with series connections.īefore DeWalt FlexVolt, you had to choose a hard configuration for your battery to perform in. Add a third row of cells wired in parallel and you get 6.0 amp hours in your 20V Max battery. This creates a DeWalt 20V Max 4.0 amp hour battery.
Now the voltage remains the same, but the amp hours double. You can then wire a second set of five cells to the first using a parallel connection. The ~2.0 amp-hours in each cell don’t combine in any way, so the battery is a 20V Max, 2.0 amp-hour battery-also known as a DeWalt compact battery.
Each cell produces 4V Max (3.6 volts nominal) and the series connection multiplies it to make 20 volts. You get a 20V Max pack (or an 18V nominal pack) by wiring sets of five lithium-ion cells in series. Wiring rows of cells in parallel delivers greater amp hours. You wire lithium-ion battery cells in a series to increase the voltage. The idea of battery pack wiring is fairly straightforward. Electronic controls have given DeWalt the technology to wire the FlexVolt battery both ways to either extend run time in 20V Max tools or deliver more power in 60V Max (and the occasional 120V Max) tools.įlexVolt batteries currently exist in four different sizes:Ģ0V Max and 60V Max from the Same Battery – How? The tool tells the battery which mode to operate in, so it’s completely automatic for the user. Each FlexVolt battery supports outputting either 20V Max or 60V Max. Mitigate this by keeping total rider weight as low as possible (don't sit three kids on this thing), do not rapidly shift directions while in motion, allow cooling periods between battery changes, just take it easy and it'll last longer.Hybris battery voltage makes DeWalt FlexVolt so revolutionary. Expect to wear out gearboxes and motors more quickly when you apply extra voltage. Secondary Warning: Overvolting is hard on stock drivetrain components. If you are unsure of any of this, DON'T DO IT.
Stock batteries have internal thermal fuses in them, so changing batteries necessitates adding an inline fuse holder. Any time you add an aftermarket battery to a BPRO, you NEED a fuse.
Dewalt 20v battery run time mods#
SUPER IMPORTANT: No matter what battery mods you do to a kids ride-on, you need an inline fuse. Soldering Iron, Mini screwdriver set, Wire Strippers, Crimpers, Mini Pliers, magnetic parts dish, Multimeterįuse Holder (absolutely vital), 30A ATC Fuses, 10ga wire, Heat Sinks (optional, but help keep motors cooler for longer life), 18v Batteries (although you ideally have extras of these laying around if you're doing this mod), and either a broken tool or extra battery charger to salvage the battery socket from. I don't always use all of them, but some of the handiest stuff is: Here's an overview of the tool set you'll need to complete a project like this.
Dewalt 20v battery run time mod#
This is a relatively simple mod that will add about 50% more speed to your kid's BPRO. Today I'll be converting a Power Wheels battery-powered ride-on toy from 12v sealed lead power to 18v lithium ion power.
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