The underbonnet temps killed 2 batteries in my zx from evapourating all the water out. I have the option to buy a battery barrier wrap as pictured here. They retail at 69.90, with 10 orders i can get them for 49.90 + postage just an EOI at this stage. But i would like one
I'd like to see some test data? Not poohoo'ing the idea but 3 points I'll raise: 1. Insulating the battery may serve to maintain a more controlled temperature? i.e. temp remains higher or lower longer. 2. Century sell a High Performance battery (@ circa $175) designed for high temp operation and after 3 years mine is still going strong (despite 17 days of being totally drained - interior light left on over Xmas hols) 3. 4 years is about maximum life for any lead-acid cranking battery.
fair points. I had one conventional battery only lasted nine months because i ddint check the water, it wasnt leaking, just evapourated out. I dont think this is such a problem on maintainance free battery's or the dry cell ones. Im gonna grab one anyway. since im still using a conventional battery
no comprehendo ...!!! .. i purchased my zed 38 months ago with a supercheap "gold", super el cheapo battery installed .... it is still going strong and the majority of my driving, as a D/D, is very short trips .... a heavy workload and low charging scenario ... .. reckon that you may well have other issues regarding your battery ..??? ..
Overcharging can cause the battery to dry out as well. Agree it's a bit sus for two batteries to dry out because of exessive under bonnet temps, must be getting bloody hot in there if that's the case.
You could also consider a gel-filled type battery. No liquid to evaporate and can even be mounted sideways or upside down
fyi: Cut and paste from http://7faq.com/owbase/ow.asp?GoodEngineeringPractice/Batteries FACTORS AFFECTING LEAD-ACID BATTERY LIFE 1. Over discharging, which causes excess sulphation. (If your car fails to start within a reasonable length of time/number of start attempts, continuing to engage the starter until the battery will not even operate the solenoid, can permanently damage your battery). When supplying a heavy starter current and the engine doesn't fire, lots of water is produced around the plates due to sulphuric acid breakdown which prevents proper battery action. Leaving the battery for a minute or two before trying again, allows time for the water to mix with the acid again and restore proper battery action. That's why an apparently deadish battery seems to work again if you leave it a while. 2. Too rapid charging and discharging, resulting in overheating and buckling of the plates and shedding of active material. The accumulation of shed material, in turn, can cause shorting of the plates and results in internal discharge. 3. A battery that remains in a low or discharged condition for a long period of time (one month) may be permanently damaged. In addition to causing deterioration of the battery, these factors also decrease battery capacity.
