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Charging Practices and Battery Health
Repeatedly charging a device in ways that keep the battery at full capacity can make the battery less capable of holding a charge, or in worst cases, prevent it from recharging altogether.
Trickle Charging Explained
Trickle charging occurs when your smartphone or tablet reaches 100 % and remains plugged in. The charger supplies small amounts of electricity to keep the battery at full charge. If you plug in your tablet each night, it may lose a little charge over the course of the night, prompting the charger to kick in and top it back up.
Impact of Keeping a Battery at 100 %
Keeping lithium‑ion batteries charged at 100 % for long periods can stress them and accelerate wear, especially if the device becomes warm.
Chemical Aging of Lithium‑Ion Batteries
Chemical aging is the normal wear and tear that happens as a lithium‑ion battery goes through repeated charging and discharging cycles. Over time, the internal chemical reactions become less efficient, leading to reduced capacity and slower performance.
Tips to Prolong Battery Life
- Use certified chargers (e.g., Apple‑certified or USB‑PD) that include built‑in safety measures to prevent surges and overheating.
- Avoid cheap, off‑brand chargers that may skip safety features.
- Unplug the device once it reaches a full charge instead of leaving it plugged in overnight.
- Try to keep the battery level between 20 % and 80 % when possible to reduce stress.