A Few Words About Batteries - Roberts Blutune T2 Manual

A Few Words about Batteries...

Your Roberts Blutune T2 radio has been designed to use a choice of
power sources. You may plug it into the mains using the supplied high-
efficiency 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 fitted, then set the switch to the Alkaline position (in
the down position). This position minimises 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 (in the down position).
c. If Rechargeable batteries are fitted, then set the switch to the NiMH
position (in the up 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.
Caution: Replace batteries only with the same or equivalent type.
Danger of explosion if the batteries are incorrectly replaced.
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Rechargeable batteries
Your Blutune T2 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 at least 2000mAh capacity.
Batteries of this capacity should be able to power your radio for between
15 and 25 hours depending upon the volume of the radio, operating
mode 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 position. Install the batteries arranging them
as shown on page 4.
Plug the mains adaptor into a mains socket and then into the radio. The
charging indicator will show on the display, see page 4.
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 5 and 7 hours depending on the battery capacity and
their initial state of charge).