While many applications can be supplied using a standard voltage converter or stabilizer, sometimes there can be a requirement to charge one DC battery from another in order to provide independent power. This product range of DC-DC chargers is based on the very successful Power Converter range but configured to offer a four stage charging program that will ensure that batteries are charged to a maximum capacity providing long term reliable power. These products come with many of the same safety and protection features as the Power Converters, but are also additionally designed to detect faulty batteries and dead cells. They will also ensure that they will not operate unless the source battery is attached to a charging source such as a vehicle alternator or mains unit. In this way, you can ensure that the charger will not allow unintentional draining of the source battery.
These intelligent battery chargers operate a four stage charging cycle. The first stage monitors the battery to establish that the battery is in good condition before starting the three stage process. This feature is of key importance in ensuring that faulty batteries are not inadvertently charged causing overheating and potential system failure. The units are also reverse polarity protected and when re-connected correctly will operate normally without reset. The three point mounting cradle is also supplied for fast and easy installation.
| Input voltage range | 24-32Vdc, 12-16Vdc. Configured to prevent depletion of source battery. |
| Output voltage | 12V or 24V nominal through the intelligent battery charging curve. |
| Transient voltage protection | Meets ISO7637-2 International standard for 24Vdc commercial vehicles |
| Electrostatic voltage protection | Meets ISO10605, ISO14982, >8kV contact, 15kV discharge |
| Output noise | <50mV pk-pk (100mV on 24V units) at continuous load. Meets CISPR25. |
| Off load current | Typically <5mA. Unit will shut down when source battery is not being charged. |
| Power conversion efficiency | Typically 85% |
| Isolation | >400Vrms between input, output and case, on isolated products only |
| Operating temperature | -25°C to +30°C to meet this specification table |
| +30°C to +80°C de rate linearly to 0A | |
| Storage temperature | -25°C to +100°C |
| Operating humidity | 95% max., non-condensing |
| Casework | Anodised aluminium, glass-filled polycarbonate, dust, water and impact resistance to IP533 |
| Connections | Five 6.3mm push-on flat blade connectors |
| Output indicator | Multicolour LED adjacent to output terminals indicating power and charging mode |
| Mounting method | “Click ‘n’ fit” mounting clip, fitted separately using three hole fixing |
| Safe area protection: | |
| Over current | Limited by current sensing circuit |
| Over heat | Limited by temperature sensing circuit |
| Transients | Protected by filters and rugged component selection |
| Catastrophic failure | Protected by internal input and output fuses |
| Approvals | 2004/108/EC The general EMC directive |
| 2006/96/EC The automotive directive | |
| 93/68/EEC The CE marking directive | |
| Designed to | EN50498, EN55022, ISO 7637-2, EN61204-3 |
| Markings | CE and E marked |
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