tao said:sanyo 2500mah batts are the best... longest lasting NiMH batts in the market.
Firefox said:The Maha or Lightning Pack chargers are pretty good.. Other than that, I'd recommend the Sony Refresh Charger if charging times are not too much of an issue.
Always a good idea to refresh the cells once in a while if they're used for high-current devices.
I'd recommend using NiCD if flash charging rates are critical. Just carry one or two extra set(s) if need be. NiCD batteries have higher discharge currents than NiMH and generally are damaged less by the high discharge currents.
kahheng said:Mr Fox, what would you estimate the range of surge current to be for a, say, average GN 30+ flash unit like an SB-25 that take 4AAs?
Firefox said:I wouldn't know.. Maybe you can try emailing Nikon on that.. LOL...
But I do know that NiCD's (especially those with R suffixes) have higher current discharge.
Hence, remote controlled cars/ planes hobbyists always use NiCD battery packs. A 3,000mAH pack can very easily be fully drained in about 1/2 hour :bigeyes: under such usages.
Also, NiCD batteries have a slower self-discharge rate than NiMH. They (NiCD) discharge about 10% capacity on after the first day and about 10%/ month thereafter. NiMH is about 50% more than NiCD.
Zerstorer said:Currently, there is no reason to use NiCds for hotshoe flashes considering their lower power density and higher memory effect. NiMh have long surpassed NiCd in this area of usage.
Firefox said:The Maha or Lightning Pack chargers are pretty good.. Other than that, I'd recommend the Sony Refresh Charger if charging times are not too much of an issue.
Always a good idea to refresh the cells once in a while if they're used for high-current devices.
I'd recommend using NiCD if flash charging rates are critical. Just carry one or two extra set(s) if need be. NiCD batteries have higher discharge currents than NiMH and generally are damaged less by the high discharge currents.
Firefox said:I wouldn't know.. Maybe you can try emailing Nikon on that.. LOL...
But I do know that NiCD's (especially those with R suffixes) have higher current discharge.
Hence, remote controlled cars/ planes hobbyists always use NiCD battery packs. A 3,000mAH pack can very easily be fully drained in about 1/2 hour :bigeyes: under such usages.
Also, NiCD batteries have a slower self-discharge rate than NiMH. They (NiCD) discharge about 10% capacity on after the first day and about 10%/ month thereafter. NiMH is about 50% more than NiCD.
Firefox said:The Maha or Lightning Pack chargers are pretty good.. Other than that, I'd recommend the Sony Refresh Charger if charging times are not too much of an issue.
Always a good idea to refresh the cells once in a while if they're used for high-current devices.
I'd recommend using NiCD if flash charging rates are critical. Just carry one or two extra set(s) if need be. NiCD batteries have higher discharge currents than NiMH and generally are damaged less by the high discharge currents.
Well, I've been a user of NiCds since from eveready yellow cells to those ugly sanyo green things available at SLT. The transition from alkalines to NiCds for flash usage in the 90s was like night and day. NiMhs are also faster in recycling than alkalines and I doubt they lose much to NiCds in this regard.kahheng said:I agree with you here actually. AA nicads are just not energy dense enough compared to the biggest of the AA nimhs
Zerstorer said:NiMhs main weakness is their rated 300-500 cycles, but that has not been much of an issue, I just relegate mine to other duties once they start weakening and that usually means after over a year of usage, which is good enough for me. After all, newer and better batteries just keep appearing and the Sanyo 2500s in an external battery pack can last really long.
kensh09 said:hi, I dont know anything about electrical stuff, wat is flash charging rate and higher discharge current?
Right now i using GP 2300 mAh, but they dont seem to last long enough. Have to get many packs instead.
kahheng said:Wouldn't use GPs if I can help it. Sanyos can't be beat. They are so far ahead of the game in terms of R&D and manufacturing capability it's not funny.
kensh09 said:So where can i get this 2500 Sanyo batt+charger at good price? Their site doesnt seem to have the 2500 version.
Is these the 1 you all are refering to?