for Samsung A20/A30/A50 Battery Kingston this replacement battery may be

this replacement battery may be what you need to fix it

Horn size: 57mm*2

You can expand the memory by up to 1TB

Horn Impedance: 4Ω 5W+5W

for Samsung A20/A30/A50 Battery Kingston this replacement battery may be1. The best alternative to primary battery, standby time and call time are equal. 2. Lithium ion batteries provide excellent continuous power supply for your equipment. 3. Good quality and long service life. 4. Compared with nickel cadmium batteries, lithium ion batteries have no memory effect. 5. If you do not use batteries for a long time, please keep them in a cool and dry place and charge them every three months.