Relevance. High performance AGM and conventional batteries for PWC including Jet Ski, Wave Runner, Wave Jammer and more. the cheap jet-ski batteries im seeing are 80$ and i can find lawnmower batteries for 20$ that are physically the same size. Go riding in the ocean. But with a bit of practice, you can start learning the springing technique and—when you're comfortable—move on to the more difficult ollie. 12 Answers. Look at the charger to ensure it is not plugged in. Flooded batteries make it possible to simply look inside the cells and determine if the battery … Just wondering. The batteries will not use a great deal of power to start the small engine on your Jet Ski but will lose charge … can you jump off a boat battery with a car or should i just buy a battery charger? Let’s get you back in the water! How to tell if a battery is bad or good: These 3 steps will help you test and determine if your battery is truly bad or getting there. Will this mess up or blow up something on the sea doo ? ... That's why there's also a sticker on the ski saying not to jump start. yes you can use a car battery. ive considered exposure to water as a reason a lawnmower battery would be a bad choice, but ive looked over both and they seem similary water … Once you know how to jump a jet ski, riding in the ocean is a great time! Favorite Answer. “My Jet Ski Won’t Start” – Troubleshooting a Jet Ski that Won`t Start . the batteries are the same voltage and im pretty sure the only thing a battery does in a jet-ski is fire the spark plugs. PWC Gasket Sets. NO! I tested the battery and its fine, just replaced the battery anyway. A few tips on how to jump a jet ski are mentioned here.. 2. They have a very good design and quality mechanics, but they still endure lots of battering and high speed abuse. ... car battery will not hurt your ski but a car Charging system is too strong for the ski electronics. This may seem like stupid and no brainer question but can you jump start a sea doo with another vehicle with jumper cables from car or truck? Sometimes it's obvious if there is a failure, but other times it's not. If you buy a charger make sure you buy a deep cycle charger. Connect the positive lead from the charger to the battery first, then connect the negative lead from the charger to the battery. Whatever you do don’t, I REPEAT, do not hook your car battery up to your Jet Ski!!!! Do not jump your battery on your Jet Ski from your car battery. Answer Save. Mark T. 1 decade ago. Learn how to jump a jet ski. 1. If you're learning to ski, jumping can seem like an intimidating process. i tried to jump start my jet ski with my car , i maidet the first few times but on the last try i dont know what hapened but now ewen with a new battery tne ski … Boat batteries are deep cycle. This will overcharge the system and fry your electrical and electronics on Jet Ski’s are not Cheap. Jet skis are machines that are created to run fast on water surfaces. meaning they can be ran lower and bounce back better. Set the voltage you want to to charge to (14.4 volts for a wet cell battery; 14.2 volts for gel cell batteries) and plug the charger in. A Jet Ski battery is very similar to a motorcycle's in size and the way they are designed.