DS1307 doesn't run at all [closed] - arduino

Question

Closed. This question is not about programming or software development. It is not currently accepting answers.
This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack Exchange site, you can leave a comment to explain where the question may be able to be answered.
Closed 4 days ago.
Improve this question
Okay, so i have two DS1307 in front of me and they differ in hardware. I have no clue about electronics, so I don't know what that element is, but here's a photo:
I run them with an ESP8266.
One of them is working correctly with the code provided below, the other isn't. I have no idea why. Here's the code:
#define SCL_PIN 5 // D1 PIN
#define SDA_PIN 4 // D2 PIN
#include <Wire.h>
#include "RTClib.h"
RTC_DS1307 rtc;
void setup() {
Serial.begin(9600);
Wire.begin(SDA_PIN, SCL_PIN);
rtc.begin(); // <- fails here depending on type of DS1307
rtc.adjust(DateTime(F(__DATE__), F(__TIME__)) + TimeSpan(0,0,0,20));
}
void loop() {
delay(5000);
DateTime dt = rtc.now();
int second = dt.second();
int minute = dt.minute();
int hour = dt.hour();
int day = dt.day();
int month = dt.month();
int year = dt.year();
Serial.print("-> it's ");
Serial.print(hour);
Serial.print(":");
Serial.print(minute);
Serial.print(" # ");
Serial.print(day);
Serial.print(".");
Serial.print(month);
Serial.print(".");
Serial.println(year);
}
On the DS1307 on the right side of the photo, the code works fine, rtc is initialized and shows the correct time from my OS. On the left side it won't initialize and shows the debugging string as:
20:154 # 148.3.2000
Without the RTCLib.h, if I only read with the Wire object at 0x68, I get the date 165.165.165
Any ideas on how to resolve the problem? Or what the problem is at all?
I tried:
another DS1307 of the same kind, it's always this component that differs that makes the code run or not.
get datetime from memory at 0x68 with Wire object
only run DS1307 alone with ESP8266