How to extend my battery life on a jailbroken iPhone 4s?

My battery is dying faster on my jailbroken phone, any tips

Try turning off the brightness, Wi-Fi if possible, and other setting. If it doesn't fix the issue the battery is probably on its last life so it dies fast. You can buy a new Battery on ebay For around $10. It's fairly easy to replace. Just watch youtube videos online if you don't know how. I wouldn't go to repair shop because they will Rip you off. If you don't want to do that you can buy a Battery Case for it. Basically its a Case you can charge then you can put it on your iPhone to charge it. The best Brand is Mophie which will cost at least $80, but i see a bunch of other for as low as $10 on ebay. You can also get a external battery charger. Basically it's not a case but you can still charge it and plug it into your phone and charge your Phone. I seen these for as low as $5 on ebay. Replacing the battery is still the best solution if you don't want to add bulkiness to your phone. If you still need more battery buy a external battery charger or battery case.