To work this out, divide the battery's mAh by the charger's mA.
For example a 3500mAh (3Ah) battery charging on a 800mA (0.8A) charger will take 4.375 hours (3500/800 = 4.375).
If you charger has a higher mA output than the battery's mAh then adjust them to match. For exmaple, If I had a 6.0A charger but only a 3500mAh battery I'd adjust the output of the charger to 3.5A to ensure it doesn't charge faster than 1 hour.
To see if a charger is compatible with your battery there are just 2 main things to check.
If you've checked both of these things then all you need to do is ensure you select the correct connector and charge it on the correct setting (if the charger is adjustable)
When you're starting out there are basically two main options to choose between. You will either get a fairly basic non-adjustable charger or a smart (also known as a 4-button charger).
These are a great option as they are cheap and don't require any adjusting/programming to charge. The downside is they are limited to a specific battery type and are generally pretty slow to charge (2+ hours).
If you have a NiMH battery with a basic charger to suit, and then upgrade to a LiPo, you'll need a new charger that is compatible with LiPo batteries to charge it safely.
The smart chargers are very versatile and basically every hobby enthusiast has one of these as they can virtually charge any battery this hobby throws at us and charge it as quickly as possible (about an hour). However, of course, they require the user to select the battery they are wanting to charge (it's pretty easy once you know how).
This connector works with newer iD connectors but disables the iD functionality
Still unsure? Contact us.