Current from stock Wilderness 12 AH pack?
- Thread starter dirtdad
- Start date
Rassy
1 MW
dirtdad wrote:
When I purchased my WE BD36's about a year and a half ago, their brushed controllers went to 35 amps. Their standard battery was only 7 AH, so they were expecting it to suppply 5C. However, they were selling all their kits with the 12 AH pack "free", which would have been required to supply 3C. I expect the 7 AH packs weren't up to the task.
Anyway, I have verified the 35 amp draw during startup and hill climbing, using an inline automotive ammeter. All my batteries are still strong, but my normal daily rides are pretty short and the batteries are always promptly recharged.
Edit: Hey, its late and I already had to correct two numbers above. Hope it makes sense. My conclusion is you might get away with 5C, and will be okay with 3C. Of course the sag increases as your draw goes up.
When I purchased my WE BD36's about a year and a half ago, their brushed controllers went to 35 amps. Their standard battery was only 7 AH, so they were expecting it to suppply 5C. However, they were selling all their kits with the 12 AH pack "free", which would have been required to supply 3C. I expect the 7 AH packs weren't up to the task.
Anyway, I have verified the 35 amp draw during startup and hill climbing, using an inline automotive ammeter. All my batteries are still strong, but my normal daily rides are pretty short and the batteries are always promptly recharged.
Edit: Hey, its late and I already had to correct two numbers above. Hope it makes sense. My conclusion is you might get away with 5C, and will be okay with 3C. Of course the sag increases as your draw goes up.
Eric G
1 kW
Yep I agree with Rassy,keeping sla discharge at around 3 C.
I'm using a brushed Crystalyte with a 25 amp controller and 36v/7.2ah sla.Using a Watts Up meter it shows I draw 26 amps or 3.6c from the batteries at startup,pedaling reduces this.When up to speed and cruising along it's much less.My batteries are a year old now and still have alot of pep in them.The less current you draw from the batteries the better the range and battery life.
Eric
I'm using a brushed Crystalyte with a 25 amp controller and 36v/7.2ah sla.Using a Watts Up meter it shows I draw 26 amps or 3.6c from the batteries at startup,pedaling reduces this.When up to speed and cruising along it's much less.My batteries are a year old now and still have alot of pep in them.The less current you draw from the batteries the better the range and battery life.
Eric
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