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Results tagged with batteries
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user 11884
An electric battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy. Connected a battery's negative to another's positive is a way to increase voltage, useful when a battery outputs low voltage.
4
votes
Is draining a Li-Ion to 2.5 V harmful to a Li-ion cell?
Yes, depleting a rechargeable cell under certain voltage level is harmful to it. The discharge voltage level depends on the cell chemistry.
The minimum discharge voltage varies between various sites, …
- 4,632
3
votes
CR1632 (3v) vs. Two AA's
Alkaline batteries are used where in-rush current needed is high. Examples are digital cameras. Alkaline batteries have a self discharge rate higher than the Lithium cells. …
- 4,632
3
votes
Accepted
Getting a higher voltage from a battery than specified
As m.Alin suggested, you could you boost regulators. Look at the following example from LTC
You can input your input and output parameters and regulator suggestions will be provided.
Choose the be …
- 4,632
3
votes
1
answer
4k
views
Constant current battery discharge
I'm simulating NiMH cell discharge from 1.5V to 1.0V. The circuit I drew is supposed to draw a constant current from the battery.
I simulate a DC Sweep in circuit lab but somehow the current draw i …
- 4,632
3
votes
Problem powering ESP8266 with two 1.5V AA cells
In a nutshell, you can't power the ESP8266 module either directly or using LDO using two AA batteries.
You would have to use at least three AA alkaline/lithium/Carbon-Zinc batteries. … The rechargeable Ni–MH or Ni-cd batteries will barely make it as each cell is 1.2V (nominal).
A better (no hassle) solution is to buy ESP module with a battery pack like one below. …
- 4,632
1
vote
How high charging temperature causes damage to AA size NiMH cell
Unless needed, cells / batteries should be charged at the lowest current possible (check datasheet).
Recommendations:
1. Charge cells/batteries in well ventilated areas with lower temp.
2. …
- 4,632
4
votes
Can a phone charger be adapted to charge a laptop battery?
Phone chargers cannot be used to charge a laptop battery for following reasons:
Phone chargers can't supply enough current to charge a big battery.
Phone charges can't be connected directly to batte …
- 4,632