If the packaged lithium battery has been packaged, it is generally impossible to reduce the voltage to 1.5V, because the packaged lithium battery already has a protection chip and a charging and switching switch. MOS discharge when the voltage is lower than 2.4~2.8. V (according to product definition), the lithium battery discharge MOS switch will be turned off and no further discharge will be allowed unless you remove the protection board. This way only the battery core can be discharged to 1.5V, but. it will take a long time, because lithium batteries have internal resistance. Once the discharge stops, the lithium battery voltage will rebound. However, no matter what, discharging to 1.5V will damage the lithium battery.
Does using a reduced voltage lithium battery save power?
The camera's 3.6V power supply is a batterylithium battery, although the lithium battery can reach 4.2V when fully charged. without load, when used, it will be immediately reduced below 4V, especially when the power consumption is large, it will be reduced even more. It can only maintain a long discharge time and a large discharge current at 3.6-3.7V.
So there is no need for the poster to use a discharge reducing device. voltage, just use lithium batteries directly.
When using a diode, you must turn off the camera. The main reason is that when the lithium battery is discharged, the voltage may only be 3.7-3.8V. After the diode reduces the voltage, the voltage may be 3.7-3.8V. V. the actual voltage is only 3-3.1V. The camera is turned off due to undervoltage.
A camera that uses a nominal 3.6V battery, whether it uses 3 nickel batteries1.2 V l-cadmium battery (fully charged up to 1.4 V × 3 = 4.2 V) or 3 1.2 V nickel-metal hydride batteries. (full charge can reach 1.4 V × 3 = 4.2V), or 3.6V lithium battery (full charge can reach 4.2V), the problem of short-term voltage exceeding 4V cannot be avoided. says "voltage exceeds 4V". It says "The voltage is too high and the machine cannot be turned on" is true or not, I doubt it.
My Kemei A2 uses a 7.2V lithium battery (2 x 3.6V cells), and it makes over 8V when fully charged.
What type of model and number of cells are installed in the original battery inside the original poster's camera? It seems like it's hard to find the 3.4V standard! If there are two 5# batteries, the voltage of the 3.6V lithium battery is indeed high. You can use two diodes in series to reduce the voltage. A silicon diode anda germanium diode. The admissible current of the diode must be greater than 3A.
Save energy. Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. The power saving of lithium battery depends on the battery voltage and Rb value. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries do not contain lithium metal and are rechargeable.