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celestron powertank charging problems

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I've used two 20Ah "golf buggy" sealed batteries for over ten years - no issues, no problems still give 100%.....

The charger I use is a "smart charger" - a triple stage charger - the charging current is high when the battery is flat, then as the battery improves the charge rate drops and finally when the battery is fully charged it drops to "trickle" charge - the battery can then be left on the charger indefinitely without fear of cooking or over charging.

Something like this: https://www.supercheapauto.com.au/p/calibre-sca-battery-charger---3-stage-12v-6-amp/305595.html


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17 hours ago, jonnydreads said:

what do you mean by a smart charger


I have a different brand powertank which I charge with a car battery charger, as it is much quicker than the supplied charger and has rescued me from a completely dead batter before. Assuming you don't have one of the lithium based powertanks you could try that.

I connect my charger into the car batter jump leads, but if you don't have those you may need to remove the battery from the case first. If  you have one of the Lithium based powertanks I suspect this wouldn't be a good idea to try.

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