Almost all user reviews are in agreement about the advantages of using this type of rechargeable batteries. There were even those who went as far as testing its charged capacity based on the claim that the NiMH cells can retain as much as 90% even at a stored state. The only dissenting opinion gathered from the test results is that, the cells can only retain up to 75% of stored capacity for more than a year of storage.
Although cost may be the single issue held against it, this issue is common for most eco-friendly products. The savings to be realized is not based on the initial cost in acquiring the green product, but more on the minimized cost for the length of time the product will be used.
Advantages in using Sanyo Eneloop batteries:
- They can be used immediately upon purchase, and do not require a specific number of hours for the initial charging common to plain rechargeable batteries.
- You can charge the NiMH cells if you feel you need to fill them up to their maximum capacity, without worrying if they will bust because of overcharging.
- Their low self-discharge capacity affords the user the convenience of storing as many rechargeable batteries as they need in their most reliable capacity.
- A single charging can be used many times over, yet remain consistent in its performance. The batteries are said to be capable of providing energy for about 500 camera shots versus an ordinary rechargeable battery’s capability of 100 shots.
- Ordinary rechargeable batteries have a rate of 500 cycles in the charge/discharge capacity. Eneloop has 1,000 cycles, which obviously means more usage before it finally runs out. This represents a longer life cycle for optimizing the initial cost of investing in these rechargeable batteries, along with its compatible charger.
Some reviewers claim that these NiMH cells can be charged using normal or fast chargers intended for NiMH batteries. While this may be true, the dedicated Sanyo Eneloop charger has a feature that automatically stops the charging process. Once the charger receives signal that the batteries are almost fully charged or reaches the negative delta V status, the dedicated charger automatically shuts off. The manual for the charger states that all batteries be removed once they are fully charged, while the charger itself should be kept unplugged if not in use.
Environmental Impact :
A single Eneloop battery removes 999 disposable batteries from landfills or battery-return collection units due to its 1,000 cycle capacity. A person who consumes as many as 10 rechargeable batteries in a year, will need only five of these NiMH batteries per year. This prevents five plain rechargeable batteries from going to battery-return collection bins or landfills.
If these batteries are used on a global scale, simply multiply 999 by the millions of disposable battery-users; hence, it is possible that a tremendous number of batteries would be eliminated from the Earth’s environmental wastes.