Low-self discharge 9v NiMH batteries have recently become available from Tenergy and Maha. Low-self discharge means these batteries will hold their charge for a year, unlike previous NiMH batteries. Update November 2012: Accupower has released a 300 mAh 9 Volt Rechargeable NiMH Battery — this currently the highest capacity rechargeable 9V. Ansmann has released a low-discharge 250 […]
In A Nutshell Overall, the best rechargeable AA battery is the Eneloop Pro (aka Sanyo XX Battery Powered By Eneloop). These batteries hold their charge for 12 months. They also have a high energy capacity (2500 mAh), and they perform better than similar high-capacity AAs (see my article for more information). Another good rechargeable AA is Maha’s Imedion battery, which is cheaper than the […]
The best rechargeable D size batteries are the new LSD Ni-MH (low self-discharge Nickel-Metal Hybride) cells. These new Ni-MH rechargeable batteries are able to retain a charge for a year, making them suitable for using in flashlights and other low-term applications. See also our full review of the Best AA Rechargeable Batteries and Chargers.
The past year has seen an abundance of bike manufacturers entering into the electric bike arena with slick, lightweight and powerful bikes. Despite misconceptions, electric bikes allow commuters to increase their range safely and arrive to the office smelling fresh, while still getting exercise (yes, you still have to pedal an electric bike) and reducing […]
The new nPower PEG (personal energy generator) by Tremont Electric wowed reviewers at the 2011 CES convention. This back-up hybrid charger allows you to keep your cell phone, iPod, or other hand-held device working while you’re on the go. By harnessing the kinetic energy that you produce through movement, then converting it into accessible power, […]