On 09/05/2021 13:31, Dave Plowman (News) wrote:
In article ,
newshound wrote:
On 07/05/2021 22:26, RJH wrote:
Would it be OK to charge on of these:


https://www.walteronline.com/en/tool...mpressor-p3155

(jump starter/compressor/light/USB) by connecting the jump leads to a car
battery charger, rather than use the supplied AC adapter?

IME these are pretty indifferent products, they don't contain much of a
battery, and the compressors are feeble too. Being lead acid you do have
to keep them charged regularly.

Eh? Lead acid self discharge very slowly.

Try leaving one for six months. Also, I bet most of these contain
bargain basement batteries.