I posted another thread like this for a TV power supply. This is for information purposes for anyone who has a bad one and wants to repair instead of replace. There is no model number on these but internally they appear to be the same, fan being the only difference I can find. If a component is damaged and can't be identified, this may help. One I have has the brand name XinJieBao on the front above the display. The other isn't marked.
My impressions. I can't say for sure on the chips and such but the HV capacitor is a very low quality one if I think. I tried to google it and also checked the Tom's Hardware tier list. It isn't listed. For me, if it isn't listed there in one of the top tiers, it isn't of good quality. They don't list every brand of low quality capacitor made but they do seem to have a complete list of the high quality ones. Of the three chargers I have , one has a brand, others does not. Inside, the difference is the fan. The one with a brand name has a very quiet fan. The one without has a low quality fan. One was bad out of balance and stopped working within a hours use. If it has a red and black wire for the fan, quiet and works well, so far. If it has a blue and black wires, not good. I've already ordered replacement 50mm fans. Fan seems to kick in when charge amps is above about 2 amps.
These chargers actually function quite well as far as design goes. It has a pulse repair feature that I use quite often. It does work pretty well. I tend to use a desulfator once or twice a year tho to really condition a battery. This charger seems to work well enough for day to day use. It also seems to do a good job of maintaining a charge. I've left these chargers hooked to a battery for months with no damage. So far, these are under $20 on ebay.
The pictures are attached. Hope it helps someone. If nothing else, if someone is planning to buy one of these, you have a idea what you will be getting. In a year or so, I plan to replace the HV cap. At least it may make it last longer, if other components are of reasonable quality.
My impressions. I can't say for sure on the chips and such but the HV capacitor is a very low quality one if I think. I tried to google it and also checked the Tom's Hardware tier list. It isn't listed. For me, if it isn't listed there in one of the top tiers, it isn't of good quality. They don't list every brand of low quality capacitor made but they do seem to have a complete list of the high quality ones. Of the three chargers I have , one has a brand, others does not. Inside, the difference is the fan. The one with a brand name has a very quiet fan. The one without has a low quality fan. One was bad out of balance and stopped working within a hours use. If it has a red and black wire for the fan, quiet and works well, so far. If it has a blue and black wires, not good. I've already ordered replacement 50mm fans. Fan seems to kick in when charge amps is above about 2 amps.
These chargers actually function quite well as far as design goes. It has a pulse repair feature that I use quite often. It does work pretty well. I tend to use a desulfator once or twice a year tho to really condition a battery. This charger seems to work well enough for day to day use. It also seems to do a good job of maintaining a charge. I've left these chargers hooked to a battery for months with no damage. So far, these are under $20 on ebay.
The pictures are attached. Hope it helps someone. If nothing else, if someone is planning to buy one of these, you have a idea what you will be getting. In a year or so, I plan to replace the HV cap. At least it may make it last longer, if other components are of reasonable quality.
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