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Reasons for separate use of new and old lead-acid batteries
Since people don't know much about the use of batteries, there will be more or less errors in the use of batteries. For example, new and old batteries are used in series together, but everyone knows that this approach will shorten the service life of new batteries.
The new battery has more chemical reaction substances, higher terminal voltage and lower internal resistance, while the old battery has a lower terminal voltage and larger internal resistance. Generally, the internal resistance of the new 12V battery is 0.015-0.018 ohms, but the internal resistance of the old battery is large. Above 0.085 ohm, assuming that the new and old batteries are used in series, the charging voltage at both ends of the old battery will be higher than the charging voltage at both ends of the new battery in the charging state. The effect is that the new battery is not fully charged, and the old battery is already too high. In the discharging state, since the capacity of the new battery is larger than that of the old battery, the effect is that the old battery is over-discharged, and even the old battery is reversed, and the battery swells as a side effect. It will consume the electric energy of the new battery, and at the same time it will cause the voltage instability inside the appliance, and there is also the risk of overusing the old battery.
The above is the relevant information compiled and summarized by the editor of the solar colloidal battery manufacturer Kang Lida. I hope it will be helpful to you. If you want more information, you can contact us, or visit our official website for more information.
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