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Charge current ~ 100mA per cell. If we assume this is C/10 rate, this implies cells are ~ 1Ah and recharge time is then 12-14hrs
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BATTERY
BT? BT? BT? BT? BT? 5 strings 4 x AA cells in each string

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1 Red approx: 12VDC unloaded 11VDC loaded 2 F1 450mA,125V R3 D1 1N4001 14VAC Unloaded 1
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6 R2 1k

D3 1 D8 1N4148 56 Ohm,5W 1N4001 2 D4 2 2 D9 1N4148
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R1 1 10k 1

T? 1 NAME PLATE: INPUT 120V 9.5W 60Hz OUTPUT DC 5.6V 470mA D2 1N4001 2

R4

56 Ohm,5W

1N4001 2 1

536 Q1

D5 2 R5 56 Ohm,5W 1N4001 2 1 1 D10 1N4148

End View Battery Pack
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D6 2 -ve 6 R6 56 Ohm,5W 1N4001 2 1 1 D11 1N4148
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+ve

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-ve

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-ve

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D7 1 LED1 D12 1N4148 1N4001 2 1 RED LED

-ve

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-ve

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R7

56 Ohm,5W

Q1 BASE VIEW E B LED is on when all five strings of cells are connected but goes off if any string goes open circuit. Shorted cells in a string will still allow LED to light. This document is supplied for educational purposes, and may not be sold or used for commercial purposes without my permission. Part designators may not match Official Olympus schematic/parts list. [email protected]

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Title OLYMPUS : T45 NiCd Charger 1 Size A Date: Document Number {Doc} Thursday, August 26, 2004
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(c) T.Hughes 2004 Rev 1.0 Sheet 1
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