Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month
I have bought several 18650 batteries from Deal Extreme in the past and was looking for a slightly higher capacity, realising that the capacity is often over stated. These batteries work fine, but are nowhere near the stated capacity.
I did a direct comparison with SKU.26247, using the same load from a fresh full charge. The 26247 lasted about 5hrs 40mins. which gave them a capacity quite close to the stated 2600mAh.
These batteries only lasted 4hrs 20mins giving them a capacity of only just over 2000mAh.
The batteries work, they have now been through several charge cycles, the low voltage cut off works fine, cutting off at about 2.7V BUT they are nowhere near the stated 3600mAh capacity. more like 2100 or 2200mAh.
Very disappointed, was hoping for a bit more capacity than I get from my SKU.26247 as these ones are rated at 3600mAh but in fact they have a worse capacity than SKU.26247 and are more expensive. :-(
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