Knowledge Centre What Amp DC-DC Charger do I require?
Q: What Amp DC-DC Charger do I require?
A: You want to prevent damaging the battery from a slow or fast charge so selecting the right size is important. If you have a wet lead-acid, AGM & GEL batteries, it is a general rule of thumb to rate the charger to deliver 10-20% of your battery's rated capacity (i.e. for a 100Ah battery, a 10-20A charger would be best suited). Lithium batteries can handle much higher charge currents and can therefore have reduced recharge times. You will find the charging current limit for a lithium battery on the manufacturer's datasheet.
The information contained in these articles is provided in good faith and we do our best to ensure that it is accurate and up to date, however, we cannot be held responsible for any damage or loss arising from the use or mis-use of this information or from any errors or omissions. The installer is ultimately responsible for the safety of the system so if you are in any doubt, please consult a qualified electrician.
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