DYNAVOLT GEL battery YTX20L-BS

Replaces YTX20L-BS series batteries, 20AH, 450CA, 360CCA (OEM 65989-90B)

Width x Depth x Height = 175 x 87 x 155 mm
Cold start current: 360 CCA (DIN)

Nano-Gel fully activated maintenance free batteries are totally sealed units. Superior to wet charged sealed activated batteries and pre-filled with a unique gel electrolyte. This makes these batteries easy and safer to use, requiring no topping up, eliminating spills and leakages and offer an extended battery life.
12.51 V - 12.57 V = 75 % charged
12.69 V - 12.75 V = 100 % charged

Acid density:
1.25 kg/l = 75 % charged
1.28 kg/l = 100 % charged

This state of charge should at least have the battery, even if it still works with less, but this is still due to its durability.

Optimal would be 100 % charge - for 100 % use!

Since today's vehicle generation places a considerably higher electrical demand on the battery (due to its extensive comfort and electronic equipment), even newer vehicles can quickly lead to a negative energy balance. If most of the energy generated is required by the on-board power supply and the remaining energy is no longer sufficient to fully charge the battery.

For vehicles that are only used seasonally (convertibles, motorcycles, tractors, harvesting vehicles, construction machinery and construction vehicles), the same charge requirements must be observed for the battery as described above.

Check the charge (open-circuit voltage) of your battery every 2 months at the latest and recharge it if necessary. Due to the continuous chemical process, every battery is subject to self-discharge, which inevitably leads to the deepest discharge of your battery if this is not compensated by charging. If this is still connected to the vehicle, the discharge may be even faster, as the vehicle may also consume a standby current. It is best to disconnect the battery.

deep discharge is not a warranty but always self-inflicted and usually associated with the total failure of the battery.

The ideal temperature to store a battery over a stance phase is 10 - 15 degrees. Higher temperatures accelerate self-discharge and the loss of water.

Eternal life the battery does not have nevertheless - the capacity is exhausted sometime.
Always full charge + normal load = slow reduction of capacity.
Insufficient load + high load = rapid reduction of capacity.