Contents
Can I charge NiMH at 1C?
If a temperature monitor is used NiMH batteries can be charged at rates up to 1C (in other words 100% of the battery capacity in amp-hours for 1.5 hours).
Can I charge NiMH with Li ion charger?
Both batteries need sophisticated chargers, but they contain very different electronics. NiMH chargers lack the safety features needed for Li-ion batteries. For these reasons, charge Li-ion batteries only in Li-ion chargers. Using another charger may result in overheated batteries, chemical fires and explosions.
Which is better Li-ion or NiMH?
NiMH batteries offer a higher capacity than Nicad batteries, and less capacity than Li-Ion. Their life-cycle is generally lower than nicad, at 500-800 life cycles. They are very similar to nicad when it comes to charge and discharge characteristics, and are safer than Lithium ion with thermal runaway.
How does a max712 NiCd / NiMH battery charger work?
The MAX712/MAX713 are powered by the DC source via an on-board +5V shunt regulator. They draw a maximum of 5µA from the battery when not charging. A low-side current-sense resistor allows the battery charge current to be regulated while still supplying power to the battery’s load.
Can You charge sixteen NiMH cells in one Charger?
If I had realized at the beginning that I needed to charge an odd numbers of cells, it co uld have been done in one charger, with suitable switching. The chargers use the MAX713 IC which allows you to make a relatively simple and flexible charger. It is possible to charge one to sixteen cells with the correct setup.
How many cells can a max713 Charger charge?
It is possible to charge one to sixteen cells with the correct setup. It helps to read the MAX713 spec sheet; it explains the setting of the PGMx pins, and give you the opportunity to customize the project to your needs. I use the simpler linear mode charge controller.
What kind of thermistor does max713 NIMH have?
The MAX713 spec sheet specifies a 10K ohm (at 25 degrees C) NTC thermistor, and suggests an Alpha Sensors p/n 14A1002 part. This part is not available to hobbyists, forcing a search for a substitute.