I you hadn't figured out how to recharge on a dead body by the time you first learn about Sasha then you really need to free run around the city honing your skills. I have played and beaten the game twice now going for a third time. Ok so here's my hints on the certain points in the game: choose a side good or evil, it changes the game. First time I played I tried doing both good and evil side missions but it just screwed up the way you can buy power upgrades dramatically decreasing your chances on obtaining all of the achievements. GOOD: When at all possible heal every person that you go by it will increase you karma dramatically. Same for evil bio-leech everyone. EVIL: blow up random objects if you get bored walking around. The easiest things to recharge off of are: lamp posts, rooftop fans( when shot the top part will explode just keep shooting, then recharge), rooftop vents (they are small poles coming out of rooftops small but effective), dead bodies, and cars (stand back and blow them up, then go in shooting, recharge). When you finally get the shield you notice that it only recharges your energy, but what about your health? Find a power source that you can recharge from(while keeping your shield up) then recharge you stay protected and restore your health. Reaper conduits: shock them as many times as possible before they attack you this will increase your chances of killing them off easily. Dustman conduits: Shock grenades are your best bet for taking care of them easily, if you have them upgraded for evil then even better since the grenades split into three to seven more grenades which if aimed right can attach to trash spiders. First Sons conduits: Fire megawatt hammers at them until defeated... I know you can only fire off so many but if you fire as many in any direction as you can then shoot them with a regular bolt the hammers will be redirected towards the conduit. That's it for know brain hurts but will be back for more hints..

I discovered that you can actually recharge from dead bodies (i did this on a Dust Man Conduit). Simply blast with normal bolts then hold L2 to drain. The more you blast the more you regain.

Basically if you need to recharge your energy and you're nowhere near any free source of electricity (eg: in a black out area), you can simply fire a couple of normal blasts at something that conducts electricity (barrels, steel girders etc) you are then able to drain about 2 blast cores of energy from whatever it is that you have just shot. So you don't use any energy from firing the blasts but can pick up full enegy if you do it a few times in a row.