I just purchased this smart charger 6 months ago now and it didnt give any problem charging my batteries for my airsoft guns. My only advise is I just notice that if u have a battery that have 1200 mah 8.4 volts you have to set your smart charger to 0.9a not to 1.8a. When i accidentally set this in 1.8a my battery it gets hot quickly so i switch it back to 0.9a. For all your airsofters lovers this product is fits for your needs and fast charging too. Tenergy Smart Universal Charger for NiMH / NiCd Battery pack 7.2V - 12V with charging current Selection/Temperature Sensor
I bought this to charge the 7.2v batteries for this r/c tank I bought my teenager - 1/16 German Tiger Air Soft Rc Battle Tank (Upgrade Version w/ Metal Gear & Tracks).
I also bought this Ni-MH battery upgrade for the tank listed above - Tenergy 7.2V 3800mAh Flat NiMH High Power (38A Drain Rate) Battery Pack with Tamiya Connector for RC Cars and Sumo Robots.
The nice thing about this charger is that it is designed to charge the battery fully, then stop, since it has an integral temperature sensor that is put against the battery pack to turn it off if the battery pack heats up.
It's also able to automatically detect the proper charging voltage, from 7.2v to 12v, and it has a selector designed to adjust the output amperage for the given capacity of battery pack.
The selector is set to the 0.9A position for packs with capacities ranging from 900mAh to 1800mAh, and set to the 1.8A position for packs with capacities ranging from 1800mAh to 5000mAh.
One note is that this charger cannot be used with packs with capacities below 900mAh or above 5000mAh, but those are basically non-existent.
The charger's default plug is the standard Tamiya connector, and it also comes with two adapter plugs.
One of the adapters allows it to charge basically any type of battery having exposed posts using the two alligator clips on the adapter.
The other adapter converts the standard Tamiya connector down to the mini Tamiya connector.
The charger also comes with two spare fuses.
Not a bad deal, and it works perfectly.
i bought this charger for the ultra spike dino. I bought the toy at a yardsale but it didn't have the charger. one's on ebay were going for like $100.00 or more for the brand name charger. but this universal charger worked just fine. The two prongs hook clamp right into the battery and it charges all the same as the brand name. So don't be a sucker and buy a more exspensive one this one works great!!!
Works like it is supposed to. No frills - just charging. Would be nice if the temperature sensor had an elastic or velcro band to keep it attace to the battery. I just use electrical tape or a rubber band.
i'm using this for my 7.2 batteries i use for my RC Cars. It takes about 2.5 hours to charge a 3800mah battery. I like how it has 2 settings for various sets of batteries capacities.
Note it says in the manual it will only work for batteries between 900mah and 5000mah, anything more than that they said not to use this charger. This charger also has an auto shutoff that turns off after 4 hours. - Airsoft'
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