Running 5VDC circuits off a rechargable ni-cd batteries that can recharge in-circuit from a DC power supply
34417
What kind of power management circuit do I need to embedded a rechargeable battery in my electronics project?
103400
How can I connect two different DC power sources together?
117910
How to drive multiple LEDs from a Li-ion battery (with varying voltage)?
67111
Can I charge and discharge a NiCd/NiMh battery at the same time?
31952
Regulated AC power supply?
61713
Simple capacitor use for buffering a battery?
75147
Powering NiChrome wire from battery
128474
Single supply op amp to convert 0-5VDC to +/-2VDC (microcontroller to line level)
12033
What would happen if I connect two different DC voltage sources in parallel?
58516
Limiting the short circuit current of a power supply
83294
How can i drive a 5v 120VAC 80mA with 15A contacts with a raspberry pi?
70745
Connecting two DC wallwarts in series - to produce dual DC supply
69578
Is it really possible to "boost" 6 V DC to above 50 kV? Or even 400 kV?
33777
home socket with DC voltage
10649
Adding mAh when wiring battery cells in series?
116269
Ground type for DC regulator
96570
Solar Cell - Preventing overcharge of an NiMH battery