Yours is that the internal lead acid battery of the electronic scale is too severely vulcanized (some even only use it once and cannot be recharged after purchasing it. Some last 2 weeks, d 'other 2-3 months the better The slower the lead acid battery (the more sulfated and passivated), resulting in small capacity and short battery life For days, hours,. minutes or even seconds, it continues to beep under power or 0 seconds (). 0 seconds, the battery at this time is equivalent to an open circuit state, which is equivalent to not existing).
Sulfide passivation principle: Lead-acid batteries form lead sulfide after discharge. Once lead sulfate is gradually and slowly sulfated (crystallization and salinization), it does not participate in the charge reaction, resulting in reduced sulfide passivation. total capacity of the battery.
For example, a 4 Ah lead-acid battery is completely idle, the remaining power is 25% (1 Ah), and the energy shortage is 100% - 25% = 75% (3 Ah). the power-deficient part gradually generates sulfuric acid. Over time, the power deficient part is 2.9 Ah... after a while... 2.5 Ah... after a while. .2.0AH...after a while...1AH...finally 0AH, at this time the total battery capacity is 1AH. Including self-discharge, the actual total capacity will be less than 1AH.
This is why lead-acid batteries must be stored fully charged.
The following is a professional analysis:
First, determine whether it is a lead acid battery problem or a circuit problem. charge.
1. Determine the problem with the charging circuit. If the electronic scale can be turned on when plugged in, it means that the circuit of charge is good, but the lead acid battery is broken (open battery circuit) or the charging circuit is defective. the internal circuit is broken;
2. If the electronic scale can be turned on if plugged in, the charging part is good, but unplug the charging cable and wait for a short time (it may be 0 seconds, a few seconds, a few minutes or a few days). It ran out of power and the electronic scale issued a low power alarm, indicating that the lead-acid battery had no power and could no longer operate. be loaded. The lead-acid battery needed to be replaced or repaired with a 4V lead-acid battery repair tool.
Also, rotten lead-acid battery plates cannot be repaired by vulcanization.
3 solutions:
1. Purchase a 4V repair instrument for lead-acid batteries and vulcanize the battery separately. Before repairing, openthe battery cover and add 1 ml of deionization to each. water hole, let it sit for 1 hour and use lead acid battery pulse repair instrument to repair it. Disadvantages: the repair may have no effect, the success rate is less than 20%, and the repaired battery will need to be repaired from time to time (up to 2 months, as little as a few days) when it loses power. power. ;
2. Add “lead-acid battery repair fluid” to the lead-acid battery. The repair success rate is less than 10%, and the repair should be assisted by a repair instrument at the beginning. to be efficient. Without repair instrument, there is almost no effect. It is difficult to repair it once with a repair tool.
3. Shield Power electronic scale lithium battery from a certain store, which can simulate lead-acid operating lithium batteries with high efficiency.e 99% discharge (different from ordinary electronic scales). The discharge efficiency of lithium batteries is only 30%), long battery life and standby, completely The electronic scale system suitable for 4V can be plugged in 24 hours a day and works all year round. It does not damage the battery at all. Its use is truly worry-free. It will be effective for more than 5 years and completely. solve the problem.
The battery is dead.
Yours is that the internal lead-acid battery of the electronic scale is severely vulcanized (some even use it once and cannot be recharged after purchasing it, some for 2 weeks and more). others for 2-3 months). , the better the quality of lead-acid battery, the slower the sulfide passivation), resulting in small capacity and short battery life, which can be days, hours, minutes, or even seconds or0 seconds.
Sulfide passivation principle: Lead-acid batteries form lead sulfide after discharge. Once lead sulfate is gradually and slowly sulfated (crystallization and salinization), it does not participate in the charge reaction, resulting in reduced sulfide passivation. total battery capacity.
For example, a 4 Ah lead-acid battery is completely idle, the remaining power is 25% (1 Ah), and the energy shortage is 100% - 25% = 75% (3 Ah). the power-deficient part gradually generates sulfuric acid. Over time, the power deficient part is 2.9 Ah... after a while... 2.5 Ah... after a while. .2.0AH...after a while...1AH...finally 0AH, at this time the total battery capacity is 1AH. Including self-discharge, the actual total capacity will be less than 1AH.
This is why lead acid batteries must be storedfully charged.
The following is a professional analysis:
First, determine whether it is a lead acid battery problem or a circuit problem. charge.
1. Determine the problem with the charging circuit. If the electronic scale can be turned on when plugged in, it means the charging circuit is good, but the lead-acid battery is broken or the internal circuit is broken;
2. If the electronic scale can be turned on if plugged in, the charging part is working properly. However, if you unplug the charging cable and wait for a short time (this may be a problem). seconds, minutes or days), the electronic scale will run out of power. If the scale gives a low power alarm (sometimes it displays Lo), it means that the lead-acid battery is not receiving power. stored and cannot be loaded. The lead acid battery must be replacedplaced or repaired with a 4V lead acid battery repair tool.
3 solutions:
1. Purchase a 4V repair instrument for lead-acid batteries and vulcanize the battery separately. Before repairing, open the battery cover and add 1ml of deionization to each. water hole, let it sit for 1 hour and use lead acid battery pulse repair instrument to repair it. Disadvantages: the repair may have no effect, the success rate is less than 20%, and the repaired battery will need to be repaired from time to time (up to 2 months, as little as a few days) when it loses power. power. ;
2. Add “lead-acid battery repair fluid” to the lead-acid battery. The repair success rate is less than 10%, and the repair should be assisted by a repair instrument at the beginning. to be efficient. Without repair instrument, there is almost no effect. It is difficultIt is necessary to repair it once with a repair tool.
3. Shield Power electronic scale lithium battery from a certain store, which can simulate lead-acid lithium batteries with a discharge efficiency of 99% (different from ordinary electronic scales) The discharge efficiency of lithium batteries n 'is only 30%), super long battery life and standby are fully adapted to the 4V electronic scale system. Its use is truly worry-free. It will be effective for more than 5 years and will completely resolve the problem.