CHARGE RATES
Charging battery packs must be done in a
way that does not exceed the limitations of the bat-
tery. Our research has shown that by following some
simple rules of charging, battery packs can give, in
return, good performance while extending the lon-
gevity of the battery’s life.
As a rule, Ni-Cad batteries, which have been used
a multiple of times, can be charged at C2 (“C”
standing for “capacity” and “2” for two times the
battery’s indicated capacity).
This is true for most
Ni-Cd batteries which are smaller than a Sub-C size.
However, if the battery pack is newly assembled or
has been rematched, the charging rate should be
no higher than C1 (the battery’s indicated capacity)
for the first five charges.
Ni-Mh batteries, on the other hand, require
a more sensitive approach to charging.
For the first
five charges, Ni-Mh battery packs should be
charged at C.5.
This means that the battery should
be charged at a rate of half the indicated capacity of
the battery. (Ex: A 1000 mah Ni-Mh battery pack
should be charged at 500 mah for the first five
charges.)
Once the initial “break in” of the bat-
tery is completed, charging should be no higher
than C1.25
if the cells of the battery pack are smaller
than a Sub-C size. Due to these recommendations,
batteries having a capacity of smaller than 250 mah
should not be charged using the PF-12.
With our custom Ni-Mh peak profile in the
PF-12, small Ni-Mh battery packs will be better
charged than with most other chargers. The PF-12
carefully charges Ni-Mh batteries so they become
fully peaked without over heating the cells. This en-
sures that battery packs charged with the PF-12 will
have many more uses in the future than if they were
charged with conventional peak chargers.
Charge Rate Table:
Battery Capacity
Ni-Cd Rate
Ni-mh Rate
(in milliampere)
(in Amps)
(in Amps)
150 to 250
250 - .300
.75 - .25
350 to 400
.500 - .800
.175 - .500
600
.600 - 1.20
.300 - .750
700
.700 - 1.40
.350 - .875
1000 - 2000
2.00
1.00 - 2.00
battery source rather than through the cigarette
lighter.
Charge Output
The PF-12 will accept bare wires or small alligator
clips to connec the battery leads to the charger out-
put jacks.
Current Adjust Knob
Controls the current. Turning the knob clockwise
increases the current flow. Begin each charge with
the current turned down.
Battery Select
Before charging, determine whether the battery to
be charged is a Ni-Cad or Ni-Mh type, and place the
switch in the appropriate position.
Start Button
Adjust the current to low, connect the battery pack
to the output leads (not supplied), select the type of
battery to be charged (Ni-Cad or Ni-Mh), adjust the
charge current to the appropriate setting, then press
the Start Button to begin charging.
Charge Indicator
When the charger is ready to be used, the charge
light will blink slowly. During charge, the light will
stay steady. After the battery has reached its peak,
the light will begin to blink slowly depending on the
charge rate.
Trickle
Once the battery reaches its peak charge, the PF-
12 switches to a slow charge rate of 1/10 the setting
shown on the Current Adjust Knob.
For Inquiries or Customer Service, contact us
directly:
Customer Care
18480 Bandilier Circle
Fountain Valley, CA 92708
http://watt-age.globalhobby.com
Phone: (714) 963-0329
110V AC Input
The PF-12 can use 110V AC for a power source.
12V DC Input
The PF-12 can use a 12V DC power source. We
highly recommend connecting directly to the 12V
As Wattage/Global Hobby has no control of the final use of this product, the
user by using the product assumes all liability for the product.
We guarantee this product to be free from manu-
facturer defect or workmanship fault for 90 days
from the orginal sale date.