I have has issues recently with intermittent headlights working then not working. I know the fuses / relays / bulbs are working, so have been putting it down to the dreaded intermittent electrical connection problem. I've occasions when they work, then they don't More recently had the odd starting issue and decided to change the unknown age Honda battery for a new Yuasa 5053. I know nothing about HID bulbs and their associated blast packs, but I wondered whether a battery on its way out could affect these bulbs? Anyone knowledgeable about this matter? Thanks.