Also, the $25 - $30 battery pumps should be generally viewed like cheap ebike battery packs. Some of them will be crap cells. Some will be OK.
As per usual, you get what you pay for.
That said I am sure that there are some good/great deals out there. Also I expect that manufacturing in Australia...
I guess we'll see. My primary use case originally was merely to have quick/easy access to air in case of emergency. I do use it once or twice a month to top up the tires and "exercise" the battery. So far it has held up well.
I knew it would have some kind of shelf life when I got it, and I...
Yesterday I went for a typical short ride down to Mud bay. Absolutely gorgeous day that hit 25C or so. Shorts and T-shirt!
But... holy carp! I thought the days of the Nemesis puddle were over, but no... Not only is it back, but dayum... it has moved, multiplied, and it's huge!
This picture...
So far I have been taking my bike in for yearly check ups and sealant replacement. That leaves me with a couple of "top ups" with small bottles of Stan's regular in each tire through the valve.