13 September 2018
13 September 2018, Comments Comments Off on New switching battery chargers from CBE
New switching battery chargers from CBE

CBE, the Italian manufacturer of electrics and electronic equipment for caravans and motorhomes, is extending its switching battery charger range with new CB516/3 and CB522/3 models offering 16A and 22A of maximum deliverable current, respectively.
The new models are also designed for more efficient charging of lead-acid and lead-gel batteries, plus optimal charging of AGM batteries, thanks to new hardware and software modifications.
As with all CBE switch-mode battery chargers, both new models feature overheating protection, plus the 12V outputs are protected against short circuits and polarity inversion. The dimensions, weights and electrical connections of these models are the same as the previous models in order to facilitate product changeover for CBE’s OEM customers willing to do so.
To further optimise the charging process, if the recreational vehicles is being used in extreme climates, a temperature sensor (placed near the battery) can be connected to these two new generation switching battery chargers in order to increase or decrease the charging values according to the temperature detected.
The charging process is completely automatic, with different voltage and current values according to the position set on the internal selector. It has no fewer than six phases instead of the previous four, thanks to the introduction of the new desulphation and refresh functions, which are:
Phase 1: Desulphation – this takes place only when the battery charger is switched on and if the battery requires it (the purpose, obviously, is to counter sulphation, a process that may occur on service batteries installed on recreational vehicles).
Phase 2: Bulk – this phase charges the battery with maximum current until the end-of-charge voltage is reached.
Phase 3: Absorption – this phase involves completing battery charging with a constant end-of-charge voltage for a set time and with a progressive current reduction.
Phase 4: Float – This is a maintenance charging phase at a constant voltage for a set maximum duration.
Phase 5: Stand-by – This phase involves a controlled switching off of the battery charger, which – once charging is completed – resumes operation only when the battery voltage drops below 13V. The reason is clear: limiting the “stress” on the battery increases its operating life and improves its efficiency. When the battery voltage drops below 13V, the battery charger switches over to the next phase.
Phase 6: Refresh – This phase sees the Bulk voltage for the time necessary to compensate for the self-discharge of the battery during possible prolonged periods of inactivity. The charging cycle then resumes from the Float phase.