Additional Information Concerning Batteries - Roberts Stream 207 Instruction Manual

Additional information concerning batteries

Your Roberts Stream 207 radio has been designed to use a choice of
power sources. You may plug it into the mains using the supplied high-
effi ciency 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 you 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 fi tted, then set the switch to the Alkaline position.
This position minimises the power consumption when the radio is
powered from the mains.
b. If Alkaline batteries are fi tted, then set the switch to the Alkaline
position.
c. If Rechargeable batteries are fi tted, then set the switch to the
Rechargeable position. Your radio is designed to use Nickel-Metal-
Hydride rechargeable batteries. No other type of rechargeable
battery should be used in the 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 shortened 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.
97
Rechargeable batteries
Your Stream 207 radio uses 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 protections 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 greater than 2000mAh capacity.
Batteries of 2500mAh capacity will typically be able to power your radio
for betweeen 6 and 15 hours depending upon the operating mode, the
volume setting, and the condition of the batteries. DAB and FM modes
require less power than Internet radio. Setting the "Keep Network
Connected" option to No will save power in DAB and FM modes (see
page 20).
Before you fi rst install a new set of rechargeable batteries into your radio
you should fi rst make sure that the battery type switch beneath the battery
cover is in the Rechargeable position. Install the batteries arranging them
as shown inside the battery compartment. Plug the mains adaptor into a
mains socket and then into the radio. While the batteries are charging the
charge indicator should show a fl ashing green light. When the batteries
are fully charged the indicator will stop fl ashing 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
fi rst fi tted, but it is normal for a set of batteries to take several hours to
charge fully (this can be between 5 and 7 hours depending on the battery
capacity and their initial state of charge).