17.
A BRIEF GUIDE TO BATTERY TYPES
17.1
NICKEL-CADMIUM (NC) BATTERIES
we recommend the following charge rates for NC batteries:
High-energy batteries: 1 - C; please observe the battery manufacturer’s stated figures.
High-current batteries: - 3C, max. 5C; please check the maximum charge current fig-
ures stated by the battery manufacturer. Check also whether the connectors and charge
lead are suitable for such high currents.
17.2
NICKEL-METAL-HYDRIDE (NIMH) BATTERIES
we recommend the following charge rates for NiMH batteries:
High-energy batteries: 0.5 - 1C; please observe the battery manufacturer’s stated figures.
High-current batteries: usually 1C, but many cell types can be charged at 1.5 … C;
please check the maximum charge current figures stated by the battery manufacturer.
17.3
LEAD-ACID (PB) BATTERIES
when handling lead-acid batteries certain safety measures are absolutely essential to
avoid the risk of personal injury and property damage. when you use these batteries,
you assume personal responsibility for any problems which arise.
• The lead-gel batteries which are in widespread use in the modelling world are usually
gastight, and therefore less hazardous than conventional lead-acid types.
• In contrast, car batteries with fluid sulphuric acid electrolyte are extremely hazardous,
because the acid is corrosive, and the cells generate gas when overcharged.
• Lead-acid batteries must never come into contact with open fire, as they may explode.
• Never forcibly open lead-acid cells; they contain corrosive materials.
• Never short-circuit lead-acid cells - fire hazard, possible explosion hazard.
• If electrolyte should escape from the cell, do not allow it to touch your skin or eyes. If
this should happen despite taking normal precautions, immediately wash it off using
plenty of clean water, and seek medical attention immediately. Never place lead-acid
cells or batteries in your mouth, as they are poisonous.
• A charged lead-acid battery is not a child’s plaything. Store these batteries well out of
the reach of children.
• When charging and discharging lead-acid batteries observe the instructions provided
by the battery manufacturer.
• Lead-acid batteries may generate hydrogen gas (“gassing”) during the charge process.
For this reason good ventilation is essential. If overcharged, these batteries generate an
explosive mixture of hydrogen and oxygen.
Explosion hazard.
Operating Instructions
Duo-Power 8S EQ
No.
8504
41
