Punched Up Numbers
I know that battery capacity determines how long my car will run on a charge, but does it a;ect
power too? My car feels more powerful on a 5000mAh 2-cell pack than a 3000mAh 2-cell pack.
Yep, that’s a real thing. Even though the 3000mAh battery and 5000mAh battery have the same
resting voltage, that voltage will drop under load—like when you stomp on the throttle, for instance.
;e greater the capacity of a battery, the less its voltage will drop under load. ;at’s why your
5000mAh pack makes your car feel stronger o; the line, and may potentially make it a little faster
at top speed too, depending on gearing. You won’t notice this e;ect with all models; it’s more apparent when you have a low-turn/high Kv motor, tall gearing, or a heavy vehicle—or all three.
Increasing battery capacity can increase your car’s
performance as well as its run time.
To get maximum performance from
a high-powered brushless model,
such as this HPI Savage Flux, choose
How can I tell how long it will
take a wall charger to charge a
Just do the math. ;e charger’s label will list
its output, usually in milliamps (m A). Battery
capacity is indicated in milliamp hours (m Ah).
Just divide the battery’s capacity by the output
rate to estimate charge time in hours. For
example, the charger shown here has an output
rate of 200 milliamps. If we use it to charge
an 1800mAh battery, we get nine hours:
1800 ÷ 200 = 9. If the charger’s output is listed in
amps, multiply it by 1000 to get milliamps. For
example, a 2-amp charger would be 2000m A,
and would therefore charge the 1800mAh pack
in less than an hour.
Waterproof Gear Grease
In addition to being “the word,” grease is
critical to maximum performance and
durability of your car or truck’s moving
parts—especially ring and pinion gears,
and di ;erential internals. So get the good
stu;, like a tub of TrakPower lube. ;e
blue grease is waterproof and specially
formulated not to sling o; parts.