We'd like to remind Forumites to please avoid political debate on the Forum... Read More »
We're aware that some users are experiencing technical issues which the team are working to resolve. See the Community Noticeboard for more info. Thank you for your patience.
📨 Have you signed up to the Forum's new Email Digest yet? Get a selection of trending threads sent straight to your inbox daily, weekly or monthly!
Powering a USB device from a battery
Options
Comments
-
Thanks. One other thought. Since it is only 2 watts or thereabouts, you might find a solar charger to run it (in daylight at least). Looking at the replacement pumps, they work down to 3.5 volts, so hopefully the volt-drop along a longer cable would not be a problem (but then I've got no idea what the resistance of a cheapo usb cable is!)
Are the cats using it, by the way?1 -
A super soaker is another cheap way of giving the cats a jet of water.1
-
One is using itcoffeehound said:Thanks. One other thought. Since it is only 2 watts or thereabouts, you might find a solar charger to run it (in daylight at least). Looking at the replacement pumps, they work down to 3.5 volts, so hopefully the volt-drop along a longer cable would not be a problem (but then I've got no idea what the resistance of a cheapo usb cable is!)
Are the cats using it, by the way?
The other is terrified of it1
Confirm your email address to Create Threads and Reply
Categories
- All Categories
- 350.9K Banking & Borrowing
- 253.1K Reduce Debt & Boost Income
- 453.5K Spending & Discounts
- 243.9K Work, Benefits & Business
- 598.7K Mortgages, Homes & Bills
- 176.9K Life & Family
- 257.2K Travel & Transport
- 1.5M Hobbies & Leisure
- 16.1K Discuss & Feedback
- 37.6K Read-Only Boards