Sony BP100 BP200 Battery Base Repair Service KaosunCD

This is a service for vintage SONY BP100/200 batteries which is used by D555, D15, D25, D10, Fisher PCD1, KENWOOD DPC7 and etc. The original batteries inside of the BP100 are lead acid batteries which seldom survive after 20+ years. Now we get rid of the dead cells in the BP100/200 and install two 4.2V2200mAH Li-Ion cells for you. Also a smart charging/protection circuit will be added along with the cells. Your CD players are required to be modified as well to fit the Li-Ion cells. The smart charging circuit will charge the cells by three stages. 1: Precharge the cells if the cells’ voltage is lower than threshold; for example, if the battery base hasn’t been used for quite a while so the voltage drops a lot. 2: Constant current charging period will charge most of the battery capacity. 3: Voltage regulation period, the cells’ voltage will be monitored no more than 4.2V each, also the circuit charges the cells by a tiny current to compensate the capacity. When charging the battery base, the tiny LED on the front panel turns red, it turns green when the charging is finished. The charging will last about 6 hrs. The battery base can power CD players around 10 hrs. If you need the service, your CD player is also needed to be modified to fit the new cells. The service is suitable for both BP100 and BP200 batteries. We also provide other battery solution up to 20 hrs’ playing time. Pls contact for detail. BP100: 10hrs (this post). BP100: 14hrs (7.4V2800mAH). BP200: 20hrs (7.4V4000mAH). 2: Send your CD player(s) and batteries to us. 4: We send the package back to your address. All the works will be finished within one week after we receive your battery and your CD player.

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