StandBy Charger | VOTRONIC

Peripheral devices – StandBy Charger

Battery recharging & charge retention

Perhaps the situation sounds familiar to you: You are on the beach in your camper and leave the car radio on for a long time or open the door frequently. Suddenly the vehicle battery management system reports that the (starter) battery is running low and the radio switches off or the battery needs to be charged. This is often caused by high power consumption by the vehicle radio or vehicle control systems, which are active for a while every time the door is opened and consume a relatively large amount of power from the starter battery. While all VOTRONIC mains chargers, solar charge controllers and combination chargers have a power-reduced auxiliary charging output in addition to the powerful main charging output, which supplies the starter battery with a defined trickle charge, many conventional devices unfortunately do not have this at all. A so-called stand-by charger provides a remedy here.

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StandBy Charger

STANDBY CHARGER Pro

product features

Charging converter for recharging and maintaining the charge of the starter battery
IU charging characteristic
Adjustable end-of-charge voltage from 12.5 – 14.5 V
Upward and downward conversion from input to output voltage possible
Also works if the voltage of the battery to be supplied is lower than that of the battery to be charged
Input-side adjustable switch-off threshold of 12 – 14 V prevents deep discharge of the battery connected on the input side
Suitable for lead, gel, AGM and lithium (LiFePO4) batteries both at the input and output
High output current of max. 8 A
Passive cooling without fan
Two independent 12V control inputs:
“EN” (enable), to activate
“DIS” (disable) to deactivate
Standby charger can therefore be switched on externally via switch and switched off, for example, via D+ while driving
2 LEDs provide information about the operating status
Reliable operation due to built-in overheating protection

However, modern lithium (LiFePO4) batteries have a significantly higher open-circuit voltage than starter batteries (lead, AGM). When using simple, unregulated and uncontrolled standby chargers, this leads to the complete discharge of the lithium supply battery. For this reason, the Standby Charger (item no. 3065 or 6065) is unfortunately not suitable for these batteries. The VOTRONIC StandBy Charger Pro, on the other hand, has an adjustable undervoltage limit at the input. Charging is interrupted if the voltage falls below this limit. This means that it can be operated without any problems on a modern lithium (LiFePO4) battery as a supply battery without running the risk of draining it completely.

Operating instructions standby charger pro

STANDBY CHARGER

The VOTRONIC StandBy Charger is used to automatically recharge and maintain the charge of the starter battery or the auxiliary battery if the mains charger, the solar charge controller or the generator only has one charging output. The device can be easily retrofitted by simply connecting it between the on-board and starter battery or on-board and auxiliary battery without having to change the existing wiring. If, for example, the mains charger is in operation and charging the on-board battery, the second battery (starter battery or auxiliary battery) is also charged with a small portion of the charging current, depending on the state of charge. This charge retention works automatically and is recognisable by an increased voltage level of the second battery. Overcharging of the second battery is impossible as the charging voltage is reduced by at least 0.6V and the charging current is limited to 3A (24V version: 2A).

Art.-Nr. Batterie-Nennspannung Stomaufnahme Ladestrom im Standbetrieb für Starterbatterie Stromaufnahme mit aktiver App, typisch Maße (B x L x H) Gewicht

StandBy Charger 12 V 3065 12 V - 0…3 A 4 mA 90 x 60 x 38 mm 52 g

StandBy Charger 24 V 6065 24 V - 0…2 A 90 x 60 x 38 mm 52 g

Operating instructions standby charger

Charging technology at the highest level

The battery is the central element of a vehicle’s electrical system. It requires the greatest attention, maintenance and care and, above all, it must be charged correctly.

Info charging technology