Battery Charging Adapter; Charging Indicators; Batteries - Nokia 121 Owner's Manual

The phone battery charging times are the same as those
for the ACH-4U Fast Travel Charger shown on page 28.
BATTERY CHARGER ADAPTER (CXH-1)
The battery charger adapter, CXH-1, will charge your
battery without it being attached to the phone. Connect the
ACH-3U, ACH-4U, or LCH-2 charger to the adapter. Insert
the battery into the charging adapter. The green LED will
light upon completion of charging (in less than 12 hours
depending on capacity, temperature, and charger used).

CHARGING INDICATORS

A red indicator on the charger (DCH-1U and LCH-2)
and scrolling battery bars on the phone's display show
that charging is in progress. When the phone's battery is
fully charged, the battery indicator on the display will
constantly show all three bars and the indicator on the
charger will be green.
If the indicator is green but the bars on the display are
scrolling, the charging is temporarily disabled (e.g. battery
too hot or too cold).
The spare battery in the charging stand is charged when
the green indicator is on.

BATTERIES

Slim 380 mAh NiCd
Battery BTH-2L
Extended 800 mAh NiCd
Battery BTH-2S
Ultra Extended 1100 mAh Nickel
Metal Hydride Battery BTH-2HE
Do not dispose of the
batteries in a fire.
Fully charged (new) batteries will provide exceptional talk
time or standby time as follows:
Battery Option
BTH-2L
BTH 2S
BTH-2HE
Talk Time Standby Time
45 min 11 hrs.
95 min 22 hrs.
130 min 30 hrs.
30