A Few Words About Batteries; Rechargeable Batteries - Sangean DPR-25+ User Manual

A few words about batteries

Your radio has been designed to use a choice of power sources.
You may plug it into the mains using the supplied adaptor. or for
listening away from the mains, you may use either alkaline or
rechargeable batteries. We do not recommend the use of carbon-zinc or
zinc-chloride batteries.
It is very important that your read the advice and warnings given below.
1) whichever type of batteries you choose to use. It is very important
that the battery selection switch under the cover is set to the
correct type.
a. If no batteries are fitted, then set the switch to the Alkaline position.
This position minimizes the power consumption when the radio is
powered from the mains.
b. If Alkaline batteries are fitted, then set the switch to the
Alkaline position.
c. If Rechargeable batteries are fitted, then set the switch to the
NiMH position. Your radio is designed to use Nickel-Metal-Hydride
rechargeable batteries. No other type of rechargeable battery should
be used in this radio.
2) NEVER mix old and new Alkaline batteries. The old batteries may
suffer damage and leak which will damage your radio and whatever
the radio is standing on.
3) NEVER mix old and new Rechargeable batteries. This may result in
unreliable charging and shorten battery life. Never mix Rechargeable
batteries of different types or capacities even if they are new.
4) NEVER mix Alkaline and Rechargeable batteries. The recharging of
Alkaline batteries can be very dangerous.

Rechargeable batteries

Your radio use a range of methods to ensure correct and safe charging
of Rechargeable Nickel-Metal-Hydride batteries. These work to protect
your batteries from excessive charge and discharge.
These protection can only work properly if the advice above is followed.
In particular, the radio will not be able to correctly charge batteries
if they are a mixture of different brands, or different ages,
or different capacities.
We recommend that all the rechargeable batteries used in your radio
are bought together as a set. They should always be charged together
and discharged together and not "borrowed" from time to time for
other applications. This will ensure that they give their optimum
performance in your radio.
We recommend that the rechargeable batteries that you use should be
from a quality brand, and should be of at least 4000mAh capacity.
Batteries of this capacity should be able to power your radio for
between 10 and 20 hours depending upon the volume of the radio,
whether DAB or FM mode is used (DAB mode uses slightly less power
than FM), and also depending on the condition of the batteries.
Before you first install a new set of rechargeable batteries into
your radio, you should first make sure that the battery type switch
beneath the battery cover is in the NiMH (rechargeable) position.
Install the batteries arranging them as shown on the back of the radio.
Plug the mains adaptor into a mains socket and then into the radio.
While the batteries are charging, the battery indicator should show a
flashing green light. When the batteries are fully charged, the indicator
will stop flashing and will show a steady green light. The time taken to
charge the batteries will depend on how much charging they require.
New batteries may be partly charged when first fitted, but it is normal
for a set of batteries to take several hours to charge fully (this can be
between 6 and 9 hours depending on the battery capacity and their
initial state of charge.
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