Even hard SF writers will admit that "true to science" space battles are boring and difficult to dramatize in fiction. The fact is, any species that has sufficiently advanced technology to launch warships into space is also going to have sufficiently advanced technology to make battles a fairly boring affair.
- has no cover (unless you're constantly setting battles in asteroid belts)
- lasers actually suck as weapons (they require enormous power, dissipate over distance, and must focus on a specific location for a period of time to even think about carving through armor - almost impossible)
- allows engagement from massive distances (far beyond visual range, with salvos of missiles or other projecties possibly taking days to reach their targets... assuming that target doesn't move)
- must consider Newtonian physics, especially for larger ships (watch the anime series Knights of Sydonia for some great dramatizations of the sheer chaos unleashed inside a spaceship when you do nothing more than TURN the ship)
- almost certainly *won't* have fighters or fighter pilots (if they have any sort of small craft other than the big ships, they would be drones, which have a vast advantage over any piloted craft in G-forces alone)
And so on. The sad thing is, actual space battle using actual physics is very, very boring. That's why Star Wars has fighters (because fighters are awesome) and those fighters dogfight like WW II airplanes in atmosphere (because that looks cool). Babylon 5 did a slightly better job in envisioning space battles, but even then they made a number of concessions to drama - fighter pilots, engagement within visual range, etc.
If you want a videogame comparison, compare Elite: Dangerous, Star Citizen, Wing Commander, X-Wing, or any of those to something like EVE Online. EVE Online is far closer to "hard SF", while the other games are space opera. You can gauge for yourself which has the more dramatic and interesting space battles.
In my opinion (since you did ask) how you write your space battles depends entirely on whether you want to pitch your book as space opera or hard SF.
If hard SF, do read up on all the physics and theories involved (protip: piloted fighter craft are right out) and focus on making your drama/conflict take place on the bridge, between the officers, so you get great drama based on how people interact with each other, since the space battles will be boring as heck.
If you do space opera, then go nuts with it. Whatever makes it fun - space aircraft carriers, battleships with turrets shooting laser beams at each other broadside, warp drive, aerodynamic fighter craft zipping around in loops, and lasers lasers lasers. In short, anime rules such as "in space, constant thrust = constant velocity".
Once you figure out what type of book you want to write, go with the appropriate space combat drama.