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Brian O wrote:
The Cadex site (www.cadex.com) says that there are important differences between the chargers. They claim that: The charge termination criterion is different. Most NiCd chargers stop (or transition to trickle charge) on a characteristic voltage drop. The NiMH voltage drop is more subtle. Most NiMH chargers transition based on temperature. The early units transitioned on a voltage plateau. Where NiCd will start to drop in voltage after full charge, NiMH tends to stop rising in voltage but not fall. A NiCd charger will charge a NiMH until the voltage drops, which (if it happens at all) will be long after the battery is badly overcharged. -- All relevant people are pertinent. All rude people are impertinent. Therefore, no rude people are relevant. -- Solomon W. Golomb |
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