New battery loses power by standing a day or two! Dead/weak charger in the bike?

[Packleader]

Why are you convinced the battery is good?

I am not overly convinced. This is a new battery, 3-4 months old, Yuasa, fitting specs, filled with it's own electrolyte. Then I had an accident, electrolyte spilled and I didn't recognised that the levels went slightly under minimum until it died on me. Since it spilled, not settled in, I topped up to level with the remaining of it's own electrolite. Recharged with a lexmoto fitting charger twice since.

IF the 14.50 or so voltage while engine is running is not good, going to become weak in the coming days, or the base 12.80v level is too weak, I might try to buy a new battery.

But as I replaced with new fitting parts the complete stator and the regulator aswell, I really hope that this 14.50 is good enough